Integrand size = 15, antiderivative size = 200 \[ \int \frac {(c+d x)^7}{(a+b x)^{16}} \, dx=-\frac {(b c-a d)^7}{15 b^8 (a+b x)^{15}}-\frac {d (b c-a d)^6}{2 b^8 (a+b x)^{14}}-\frac {21 d^2 (b c-a d)^5}{13 b^8 (a+b x)^{13}}-\frac {35 d^3 (b c-a d)^4}{12 b^8 (a+b x)^{12}}-\frac {35 d^4 (b c-a d)^3}{11 b^8 (a+b x)^{11}}-\frac {21 d^5 (b c-a d)^2}{10 b^8 (a+b x)^{10}}-\frac {7 d^6 (b c-a d)}{9 b^8 (a+b x)^9}-\frac {d^7}{8 b^8 (a+b x)^8} \]
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Time = 0.09 (sec) , antiderivative size = 200, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.067, Rules used = {45} \[ \int \frac {(c+d x)^7}{(a+b x)^{16}} \, dx=-\frac {7 d^6 (b c-a d)}{9 b^8 (a+b x)^9}-\frac {21 d^5 (b c-a d)^2}{10 b^8 (a+b x)^{10}}-\frac {35 d^4 (b c-a d)^3}{11 b^8 (a+b x)^{11}}-\frac {35 d^3 (b c-a d)^4}{12 b^8 (a+b x)^{12}}-\frac {21 d^2 (b c-a d)^5}{13 b^8 (a+b x)^{13}}-\frac {d (b c-a d)^6}{2 b^8 (a+b x)^{14}}-\frac {(b c-a d)^7}{15 b^8 (a+b x)^{15}}-\frac {d^7}{8 b^8 (a+b x)^8} \]
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Rule 45
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {(b c-a d)^7}{b^7 (a+b x)^{16}}+\frac {7 d (b c-a d)^6}{b^7 (a+b x)^{15}}+\frac {21 d^2 (b c-a d)^5}{b^7 (a+b x)^{14}}+\frac {35 d^3 (b c-a d)^4}{b^7 (a+b x)^{13}}+\frac {35 d^4 (b c-a d)^3}{b^7 (a+b x)^{12}}+\frac {21 d^5 (b c-a d)^2}{b^7 (a+b x)^{11}}+\frac {7 d^6 (b c-a d)}{b^7 (a+b x)^{10}}+\frac {d^7}{b^7 (a+b x)^9}\right ) \, dx \\ & = -\frac {(b c-a d)^7}{15 b^8 (a+b x)^{15}}-\frac {d (b c-a d)^6}{2 b^8 (a+b x)^{14}}-\frac {21 d^2 (b c-a d)^5}{13 b^8 (a+b x)^{13}}-\frac {35 d^3 (b c-a d)^4}{12 b^8 (a+b x)^{12}}-\frac {35 d^4 (b c-a d)^3}{11 b^8 (a+b x)^{11}}-\frac {21 d^5 (b c-a d)^2}{10 b^8 (a+b x)^{10}}-\frac {7 d^6 (b c-a d)}{9 b^8 (a+b x)^9}-\frac {d^7}{8 b^8 (a+b x)^8} \\ \end{align*}
Time = 0.08 (sec) , antiderivative size = 371, normalized size of antiderivative = 1.86 \[ \int \frac {(c+d x)^7}{(a+b x)^{16}} \, dx=-\frac {a^7 d^7+a^6 b d^6 (8 c+15 d x)+3 a^5 b^2 d^5 \left (12 c^2+40 c d x+35 d^2 x^2\right )+5 a^4 b^3 d^4 \left (24 c^3+108 c^2 d x+168 c d^2 x^2+91 d^3 x^3\right )+5 a^3 b^4 d^3 \left (66 c^4+360 c^3 d x+756 c^2 d^2 x^2+728 c d^3 x^3+273 d^4 x^4\right )+3 a^2 b^5 d^2 \left (264 c^5+1650 c^4 d x+4200 c^3 d^2 x^2+5460 c^2 d^3 x^3+3640 c d^4 x^4+1001 d^5 x^5\right )+a b^6 d \left (1716 c^6+11880 c^5 d x+34650 c^4 d^2 x^2+54600 c^3 d^3 x^3+49140 c^2 d^4 x^4+24024 c d^5 x^5+5005 d^6 x^6\right )+b^7 \left (3432 c^7+25740 c^6 d x+83160 c^5 d^2 x^2+150150 c^4 d^3 x^3+163800 c^3 d^4 x^4+108108 c^2 d^5 x^5+40040 c d^6 x^6+6435 d^7 x^7\right )}{51480 b^8 (a+b x)^{15}} \]
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Leaf count of result is larger than twice the leaf count of optimal. \(437\) vs. \(2(184)=368\).
Time = 0.24 (sec) , antiderivative size = 438, normalized size of antiderivative = 2.19
method | result | size |
risch | \(\frac {-\frac {a^{7} d^{7}+8 a^{6} b c \,d^{6}+36 a^{5} b^{2} c^{2} d^{5}+120 a^{4} b^{3} c^{3} d^{4}+330 a^{3} b^{4} c^{4} d^{3}+792 a^{2} b^{5} c^{5} d^{2}+1716 a \,b^{6} c^{6} d +3432 b^{7} c^{7}}{51480 b^{8}}-\frac {d \left (a^{6} d^{6}+8 a^{5} b c \,d^{5}+36 a^{4} b^{2} c^{2} d^{4}+120 a^{3} b^{3} c^{3} d^{3}+330 a^{2} b^{4} c^{4} d^{2}+792 a \,b^{5} c^{5} d +1716 b^{6} c^{6}\right ) x}{3432 b^{7}}-\frac {7 d^{2} \left (a^{5} d^{5}+8 a^{4} b c \,d^{4}+36 a^{3} b^{2} c^{2} d^{3}+120 a^{2} b^{3} c^{3} d^{2}+330 a \,b^{4} c^{4} d +792 b^{5} c^{5}\right ) x^{2}}{3432 b^{6}}-\frac {7 d^{3} \left (a^{4} d^{4}+8 a^{3} b c \,d^{3}+36 a^{2} b^{2} c^{2} d^{2}+120 a \,b^{3} c^{3} d +330 b^{4} c^{4}\right ) x^{3}}{792 b^{5}}-\frac {7 d^{4} \left (a^{3} d^{3}+8 a^{2} b c \,d^{2}+36 a \,b^{2} c^{2} d +120 b^{3} c^{3}\right ) x^{4}}{264 b^{4}}-\frac {7 d^{5} \left (a^{2} d^{2}+8 a b c d +36 b^{2} c^{2}\right ) x^{5}}{120 b^{3}}-\frac {7 d^{6} \left (a d +8 b c \right ) x^{6}}{72 b^{2}}-\frac {d^{7} x^{7}}{8 b}}{\left (b x +a \right )^{15}}\) | \(438\) |
default | \(\frac {35 d^{4} \left (a^{3} d^{3}-3 a^{2} b c \,d^{2}+3 a \,b^{2} c^{2} d -b^{3} c^{3}\right )}{11 b^{8} \left (b x +a \right )^{11}}+\frac {21 d^{2} \left (a^{5} d^{5}-5 a^{4} b c \,d^{4}+10 a^{3} b^{2} c^{2} d^{3}-10 a^{2} b^{3} c^{3} d^{2}+5 a \,b^{4} c^{4} d -b^{5} c^{5}\right )}{13 b^{8} \left (b x +a \right )^{13}}+\frac {7 d^{6} \left (a d -b c \right )}{9 b^{8} \left (b x +a \right )^{9}}-\frac {d^{7}}{8 b^{8} \left (b x +a \right )^{8}}-\frac {d \left (a^{6} d^{6}-6 a^{5} b c \,d^{5}+15 a^{4} b^{2} c^{2} d^{4}-20 a^{3} b^{3} c^{3} d^{3}+15 a^{2} b^{4} c^{4} d^{2}-6 a \,b^{5} c^{5} d +b^{6} c^{6}\right )}{2 b^{8} \left (b x +a \right )^{14}}-\frac {35 d^{3} \left (a^{4} d^{4}-4 a^{3} b c \,d^{3}+6 a^{2} b^{2} c^{2} d^{2}-4 a \,b^{3} c^{3} d +b^{4} c^{4}\right )}{12 b^{8} \left (b x +a \right )^{12}}-\frac {21 d^{5} \left (a^{2} d^{2}-2 a b c d +b^{2} c^{2}\right )}{10 b^{8} \left (b x +a \right )^{10}}-\frac {-a^{7} d^{7}+7 a^{6} b c \,d^{6}-21 a^{5} b^{2} c^{2} d^{5}+35 a^{4} b^{3} c^{3} d^{4}-35 a^{3} b^{4} c^{4} d^{3}+21 a^{2} b^{5} c^{5} d^{2}-7 a \,b^{6} c^{6} d +b^{7} c^{7}}{15 b^{8} \left (b x +a \right )^{15}}\) | \(464\) |
norman | \(\frac {\frac {-a^{7} b^{7} d^{7}-8 a^{6} b^{8} c \,d^{6}-36 a^{5} b^{9} c^{2} d^{5}-120 a^{4} b^{10} c^{3} d^{4}-330 a^{3} c^{4} d^{3} b^{11}-792 a^{2} b^{12} c^{5} d^{2}-1716 a \,b^{13} c^{6} d -3432 b^{14} c^{7}}{51480 b^{15}}+\frac {\left (-a^{6} b^{7} d^{7}-8 a^{5} b^{8} c \,d^{6}-36 a^{4} b^{9} c^{2} d^{5}-120 a^{3} b^{10} c^{3} d^{4}-330 a^{2} c^{4} d^{3} b^{11}-792 a \,b^{12} c^{5} d^{2}-1716 b^{13} c^{6} d \right ) x}{3432 b^{14}}+\frac {7 \left (-a^{5} b^{7} d^{7}-8 a^{4} b^{8} c \,d^{6}-36 a^{3} b^{9} c^{2} d^{5}-120 a^{2} b^{10} c^{3} d^{4}-330 a \,c^{4} d^{3} b^{11}-792 b^{12} c^{5} d^{2}\right ) x^{2}}{3432 b^{13}}+\frac {7 \left (-a^{4} b^{7} d^{7}-8 a^{3} b^{8} c \,d^{6}-36 a^{2} b^{9} c^{2} d^{5}-120 a \,b^{10} c^{3} d^{4}-330 c^{4} d^{3} b^{11}\right ) x^{3}}{792 b^{12}}+\frac {7 \left (-a^{3} b^{7} d^{7}-8 a^{2} b^{8} c \,d^{6}-36 a \,b^{9} c^{2} d^{5}-120 b^{10} c^{3} d^{4}\right ) x^{4}}{264 b^{11}}+\frac {7 \left (-a^{2} b^{7} d^{7}-8 a \,b^{8} c \,d^{6}-36 b^{9} c^{2} d^{5}\right ) x^{5}}{120 b^{10}}+\frac {7 \left (-a \,b^{7} d^{7}-8 b^{8} c \,d^{6}\right ) x^{6}}{72 b^{9}}-\frac {d^{7} x^{7}}{8 b}}{\left (b x +a \right )^{15}}\) | \(492\) |
gosper | \(-\frac {6435 x^{7} d^{7} b^{7}+5005 x^{6} a \,b^{6} d^{7}+40040 x^{6} b^{7} c \,d^{6}+3003 x^{5} a^{2} b^{5} d^{7}+24024 x^{5} a \,b^{6} c \,d^{6}+108108 x^{5} b^{7} c^{2} d^{5}+1365 x^{4} a^{3} b^{4} d^{7}+10920 x^{4} a^{2} b^{5} c \,d^{6}+49140 x^{4} a \,b^{6} c^{2} d^{5}+163800 x^{4} b^{7} c^{3} d^{4}+455 x^{3} a^{4} b^{3} d^{7}+3640 x^{3} a^{3} b^{4} c \,d^{6}+16380 x^{3} a^{2} b^{5} c^{2} d^{5}+54600 x^{3} a \,b^{6} c^{3} d^{4}+150150 x^{3} b^{7} c^{4} d^{3}+105 x^{2} a^{5} b^{2} d^{7}+840 x^{2} a^{4} b^{3} c \,d^{6}+3780 x^{2} a^{3} b^{4} c^{2} d^{5}+12600 x^{2} a^{2} b^{5} c^{3} d^{4}+34650 x^{2} a \,b^{6} c^{4} d^{3}+83160 x^{2} b^{7} c^{5} d^{2}+15 x \,a^{6} b \,d^{7}+120 x \,a^{5} b^{2} c \,d^{6}+540 x \,a^{4} b^{3} c^{2} d^{5}+1800 x \,a^{3} b^{4} c^{3} d^{4}+4950 x \,a^{2} b^{5} c^{4} d^{3}+11880 x a \,b^{6} c^{5} d^{2}+25740 x \,b^{7} c^{6} d +a^{7} d^{7}+8 a^{6} b c \,d^{6}+36 a^{5} b^{2} c^{2} d^{5}+120 a^{4} b^{3} c^{3} d^{4}+330 a^{3} b^{4} c^{4} d^{3}+792 a^{2} b^{5} c^{5} d^{2}+1716 a \,b^{6} c^{6} d +3432 b^{7} c^{7}}{51480 b^{8} \left (b x +a \right )^{15}}\) | \(497\) |
parallelrisch | \(\frac {-6435 d^{7} x^{7} b^{14}-5005 a \,b^{13} d^{7} x^{6}-40040 b^{14} c \,d^{6} x^{6}-3003 a^{2} b^{12} d^{7} x^{5}-24024 a \,b^{13} c \,d^{6} x^{5}-108108 b^{14} c^{2} d^{5} x^{5}-1365 a^{3} b^{11} d^{7} x^{4}-10920 a^{2} b^{12} c \,d^{6} x^{4}-49140 a \,b^{13} c^{2} d^{5} x^{4}-163800 b^{14} c^{3} d^{4} x^{4}-455 a^{4} b^{10} d^{7} x^{3}-3640 a^{3} b^{11} c \,d^{6} x^{3}-16380 a^{2} b^{12} c^{2} d^{5} x^{3}-54600 a \,b^{13} c^{3} d^{4} x^{3}-150150 b^{14} c^{4} d^{3} x^{3}-105 a^{5} b^{9} d^{7} x^{2}-840 a^{4} b^{10} c \,d^{6} x^{2}-3780 a^{3} b^{11} c^{2} d^{5} x^{2}-12600 a^{2} b^{12} c^{3} d^{4} x^{2}-34650 a \,b^{13} c^{4} d^{3} x^{2}-83160 b^{14} c^{5} d^{2} x^{2}-15 a^{6} b^{8} d^{7} x -120 a^{5} b^{9} c \,d^{6} x -540 a^{4} b^{10} c^{2} d^{5} x -1800 a^{3} b^{11} c^{3} d^{4} x -4950 a^{2} b^{12} c^{4} d^{3} x -11880 a \,b^{13} c^{5} d^{2} x -25740 b^{14} c^{6} d x -a^{7} b^{7} d^{7}-8 a^{6} b^{8} c \,d^{6}-36 a^{5} b^{9} c^{2} d^{5}-120 a^{4} b^{10} c^{3} d^{4}-330 a^{3} c^{4} d^{3} b^{11}-792 a^{2} b^{12} c^{5} d^{2}-1716 a \,b^{13} c^{6} d -3432 b^{14} c^{7}}{51480 b^{15} \left (b x +a \right )^{15}}\) | \(505\) |
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Leaf count of result is larger than twice the leaf count of optimal. 614 vs. \(2 (184) = 368\).
Time = 0.23 (sec) , antiderivative size = 614, normalized size of antiderivative = 3.07 \[ \int \frac {(c+d x)^7}{(a+b x)^{16}} \, dx=-\frac {6435 \, b^{7} d^{7} x^{7} + 3432 \, b^{7} c^{7} + 1716 \, a b^{6} c^{6} d + 792 \, a^{2} b^{5} c^{5} d^{2} + 330 \, a^{3} b^{4} c^{4} d^{3} + 120 \, a^{4} b^{3} c^{3} d^{4} + 36 \, a^{5} b^{2} c^{2} d^{5} + 8 \, a^{6} b c d^{6} + a^{7} d^{7} + 5005 \, {\left (8 \, b^{7} c d^{6} + a b^{6} d^{7}\right )} x^{6} + 3003 \, {\left (36 \, b^{7} c^{2} d^{5} + 8 \, a b^{6} c d^{6} + a^{2} b^{5} d^{7}\right )} x^{5} + 1365 \, {\left (120 \, b^{7} c^{3} d^{4} + 36 \, a b^{6} c^{2} d^{5} + 8 \, a^{2} b^{5} c d^{6} + a^{3} b^{4} d^{7}\right )} x^{4} + 455 \, {\left (330 \, b^{7} c^{4} d^{3} + 120 \, a b^{6} c^{3} d^{4} + 36 \, a^{2} b^{5} c^{2} d^{5} + 8 \, a^{3} b^{4} c d^{6} + a^{4} b^{3} d^{7}\right )} x^{3} + 105 \, {\left (792 \, b^{7} c^{5} d^{2} + 330 \, a b^{6} c^{4} d^{3} + 120 \, a^{2} b^{5} c^{3} d^{4} + 36 \, a^{3} b^{4} c^{2} d^{5} + 8 \, a^{4} b^{3} c d^{6} + a^{5} b^{2} d^{7}\right )} x^{2} + 15 \, {\left (1716 \, b^{7} c^{6} d + 792 \, a b^{6} c^{5} d^{2} + 330 \, a^{2} b^{5} c^{4} d^{3} + 120 \, a^{3} b^{4} c^{3} d^{4} + 36 \, a^{4} b^{3} c^{2} d^{5} + 8 \, a^{5} b^{2} c d^{6} + a^{6} b d^{7}\right )} x}{51480 \, {\left (b^{23} x^{15} + 15 \, a b^{22} x^{14} + 105 \, a^{2} b^{21} x^{13} + 455 \, a^{3} b^{20} x^{12} + 1365 \, a^{4} b^{19} x^{11} + 3003 \, a^{5} b^{18} x^{10} + 5005 \, a^{6} b^{17} x^{9} + 6435 \, a^{7} b^{16} x^{8} + 6435 \, a^{8} b^{15} x^{7} + 5005 \, a^{9} b^{14} x^{6} + 3003 \, a^{10} b^{13} x^{5} + 1365 \, a^{11} b^{12} x^{4} + 455 \, a^{12} b^{11} x^{3} + 105 \, a^{13} b^{10} x^{2} + 15 \, a^{14} b^{9} x + a^{15} b^{8}\right )}} \]
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Timed out. \[ \int \frac {(c+d x)^7}{(a+b x)^{16}} \, dx=\text {Timed out} \]
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Leaf count of result is larger than twice the leaf count of optimal. 614 vs. \(2 (184) = 368\).
Time = 0.25 (sec) , antiderivative size = 614, normalized size of antiderivative = 3.07 \[ \int \frac {(c+d x)^7}{(a+b x)^{16}} \, dx=-\frac {6435 \, b^{7} d^{7} x^{7} + 3432 \, b^{7} c^{7} + 1716 \, a b^{6} c^{6} d + 792 \, a^{2} b^{5} c^{5} d^{2} + 330 \, a^{3} b^{4} c^{4} d^{3} + 120 \, a^{4} b^{3} c^{3} d^{4} + 36 \, a^{5} b^{2} c^{2} d^{5} + 8 \, a^{6} b c d^{6} + a^{7} d^{7} + 5005 \, {\left (8 \, b^{7} c d^{6} + a b^{6} d^{7}\right )} x^{6} + 3003 \, {\left (36 \, b^{7} c^{2} d^{5} + 8 \, a b^{6} c d^{6} + a^{2} b^{5} d^{7}\right )} x^{5} + 1365 \, {\left (120 \, b^{7} c^{3} d^{4} + 36 \, a b^{6} c^{2} d^{5} + 8 \, a^{2} b^{5} c d^{6} + a^{3} b^{4} d^{7}\right )} x^{4} + 455 \, {\left (330 \, b^{7} c^{4} d^{3} + 120 \, a b^{6} c^{3} d^{4} + 36 \, a^{2} b^{5} c^{2} d^{5} + 8 \, a^{3} b^{4} c d^{6} + a^{4} b^{3} d^{7}\right )} x^{3} + 105 \, {\left (792 \, b^{7} c^{5} d^{2} + 330 \, a b^{6} c^{4} d^{3} + 120 \, a^{2} b^{5} c^{3} d^{4} + 36 \, a^{3} b^{4} c^{2} d^{5} + 8 \, a^{4} b^{3} c d^{6} + a^{5} b^{2} d^{7}\right )} x^{2} + 15 \, {\left (1716 \, b^{7} c^{6} d + 792 \, a b^{6} c^{5} d^{2} + 330 \, a^{2} b^{5} c^{4} d^{3} + 120 \, a^{3} b^{4} c^{3} d^{4} + 36 \, a^{4} b^{3} c^{2} d^{5} + 8 \, a^{5} b^{2} c d^{6} + a^{6} b d^{7}\right )} x}{51480 \, {\left (b^{23} x^{15} + 15 \, a b^{22} x^{14} + 105 \, a^{2} b^{21} x^{13} + 455 \, a^{3} b^{20} x^{12} + 1365 \, a^{4} b^{19} x^{11} + 3003 \, a^{5} b^{18} x^{10} + 5005 \, a^{6} b^{17} x^{9} + 6435 \, a^{7} b^{16} x^{8} + 6435 \, a^{8} b^{15} x^{7} + 5005 \, a^{9} b^{14} x^{6} + 3003 \, a^{10} b^{13} x^{5} + 1365 \, a^{11} b^{12} x^{4} + 455 \, a^{12} b^{11} x^{3} + 105 \, a^{13} b^{10} x^{2} + 15 \, a^{14} b^{9} x + a^{15} b^{8}\right )}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 496 vs. \(2 (184) = 368\).
Time = 0.30 (sec) , antiderivative size = 496, normalized size of antiderivative = 2.48 \[ \int \frac {(c+d x)^7}{(a+b x)^{16}} \, dx=-\frac {6435 \, b^{7} d^{7} x^{7} + 40040 \, b^{7} c d^{6} x^{6} + 5005 \, a b^{6} d^{7} x^{6} + 108108 \, b^{7} c^{2} d^{5} x^{5} + 24024 \, a b^{6} c d^{6} x^{5} + 3003 \, a^{2} b^{5} d^{7} x^{5} + 163800 \, b^{7} c^{3} d^{4} x^{4} + 49140 \, a b^{6} c^{2} d^{5} x^{4} + 10920 \, a^{2} b^{5} c d^{6} x^{4} + 1365 \, a^{3} b^{4} d^{7} x^{4} + 150150 \, b^{7} c^{4} d^{3} x^{3} + 54600 \, a b^{6} c^{3} d^{4} x^{3} + 16380 \, a^{2} b^{5} c^{2} d^{5} x^{3} + 3640 \, a^{3} b^{4} c d^{6} x^{3} + 455 \, a^{4} b^{3} d^{7} x^{3} + 83160 \, b^{7} c^{5} d^{2} x^{2} + 34650 \, a b^{6} c^{4} d^{3} x^{2} + 12600 \, a^{2} b^{5} c^{3} d^{4} x^{2} + 3780 \, a^{3} b^{4} c^{2} d^{5} x^{2} + 840 \, a^{4} b^{3} c d^{6} x^{2} + 105 \, a^{5} b^{2} d^{7} x^{2} + 25740 \, b^{7} c^{6} d x + 11880 \, a b^{6} c^{5} d^{2} x + 4950 \, a^{2} b^{5} c^{4} d^{3} x + 1800 \, a^{3} b^{4} c^{3} d^{4} x + 540 \, a^{4} b^{3} c^{2} d^{5} x + 120 \, a^{5} b^{2} c d^{6} x + 15 \, a^{6} b d^{7} x + 3432 \, b^{7} c^{7} + 1716 \, a b^{6} c^{6} d + 792 \, a^{2} b^{5} c^{5} d^{2} + 330 \, a^{3} b^{4} c^{4} d^{3} + 120 \, a^{4} b^{3} c^{3} d^{4} + 36 \, a^{5} b^{2} c^{2} d^{5} + 8 \, a^{6} b c d^{6} + a^{7} d^{7}}{51480 \, {\left (b x + a\right )}^{15} b^{8}} \]
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Time = 2.35 (sec) , antiderivative size = 592, normalized size of antiderivative = 2.96 \[ \int \frac {(c+d x)^7}{(a+b x)^{16}} \, dx=-\frac {\frac {a^7\,d^7+8\,a^6\,b\,c\,d^6+36\,a^5\,b^2\,c^2\,d^5+120\,a^4\,b^3\,c^3\,d^4+330\,a^3\,b^4\,c^4\,d^3+792\,a^2\,b^5\,c^5\,d^2+1716\,a\,b^6\,c^6\,d+3432\,b^7\,c^7}{51480\,b^8}+\frac {d^7\,x^7}{8\,b}+\frac {7\,d^2\,x^2\,\left (a^5\,d^5+8\,a^4\,b\,c\,d^4+36\,a^3\,b^2\,c^2\,d^3+120\,a^2\,b^3\,c^3\,d^2+330\,a\,b^4\,c^4\,d+792\,b^5\,c^5\right )}{3432\,b^6}+\frac {7\,d^4\,x^4\,\left (a^3\,d^3+8\,a^2\,b\,c\,d^2+36\,a\,b^2\,c^2\,d+120\,b^3\,c^3\right )}{264\,b^4}+\frac {7\,d^6\,x^6\,\left (a\,d+8\,b\,c\right )}{72\,b^2}+\frac {7\,d^3\,x^3\,\left (a^4\,d^4+8\,a^3\,b\,c\,d^3+36\,a^2\,b^2\,c^2\,d^2+120\,a\,b^3\,c^3\,d+330\,b^4\,c^4\right )}{792\,b^5}+\frac {d\,x\,\left (a^6\,d^6+8\,a^5\,b\,c\,d^5+36\,a^4\,b^2\,c^2\,d^4+120\,a^3\,b^3\,c^3\,d^3+330\,a^2\,b^4\,c^4\,d^2+792\,a\,b^5\,c^5\,d+1716\,b^6\,c^6\right )}{3432\,b^7}+\frac {7\,d^5\,x^5\,\left (a^2\,d^2+8\,a\,b\,c\,d+36\,b^2\,c^2\right )}{120\,b^3}}{a^{15}+15\,a^{14}\,b\,x+105\,a^{13}\,b^2\,x^2+455\,a^{12}\,b^3\,x^3+1365\,a^{11}\,b^4\,x^4+3003\,a^{10}\,b^5\,x^5+5005\,a^9\,b^6\,x^6+6435\,a^8\,b^7\,x^7+6435\,a^7\,b^8\,x^8+5005\,a^6\,b^9\,x^9+3003\,a^5\,b^{10}\,x^{10}+1365\,a^4\,b^{11}\,x^{11}+455\,a^3\,b^{12}\,x^{12}+105\,a^2\,b^{13}\,x^{13}+15\,a\,b^{14}\,x^{14}+b^{15}\,x^{15}} \]
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