Optimal. Leaf size=448 \[ \frac {3 \sqrt [3]{-\frac {c x (b+c x)}{b^2}} (b+2 c x) \left (b x+c x^2\right )^{4/3}}{55 c \left (-\frac {c \left (b x+c x^2\right )}{b^2}\right )^{4/3}}+\frac {3 \left (-\frac {c x (b+c x)}{b^2}\right )^{4/3} (b+2 c x) \left (b x+c x^2\right )^{4/3}}{22 c \left (-\frac {c \left (b x+c x^2\right )}{b^2}\right )^{4/3}}+\frac {\sqrt [3]{2} 3^{3/4} \sqrt {2-\sqrt {3}} b^2 \left (b x+c x^2\right )^{4/3} \left (1-2^{2/3} \sqrt [3]{-\frac {c x (b+c x)}{b^2}}\right ) \sqrt {\frac {1+2^{2/3} \sqrt [3]{-\frac {c x (b+c x)}{b^2}}+2 \sqrt [3]{2} \left (-\frac {c x (b+c x)}{b^2}\right )^{2/3}}{\left (1-\sqrt {3}-2^{2/3} \sqrt [3]{-\frac {c x (b+c x)}{b^2}}\right )^2}} F\left (\sin ^{-1}\left (\frac {1+\sqrt {3}-2^{2/3} \sqrt [3]{-\frac {c x (b+c x)}{b^2}}}{1-\sqrt {3}-2^{2/3} \sqrt [3]{-\frac {c x (b+c x)}{b^2}}}\right )|-7+4 \sqrt {3}\right )}{55 c (b+2 c x) \left (-\frac {c \left (b x+c x^2\right )}{b^2}\right )^{4/3} \sqrt {-\frac {1-2^{2/3} \sqrt [3]{-\frac {c x (b+c x)}{b^2}}}{\left (1-\sqrt {3}-2^{2/3} \sqrt [3]{-\frac {c x (b+c x)}{b^2}}\right )^2}}} \]
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Rubi [A]
time = 0.50, antiderivative size = 448, normalized size of antiderivative = 1.00, number of steps
used = 6, number of rules used = 5, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.385, Rules used = {636, 633, 201,
242, 225} \begin {gather*} \frac {\sqrt [3]{2} 3^{3/4} \sqrt {2-\sqrt {3}} b^2 \left (b x+c x^2\right )^{4/3} \left (1-2^{2/3} \sqrt [3]{-\frac {c x (b+c x)}{b^2}}\right ) \sqrt {\frac {2 \sqrt [3]{2} \left (-\frac {c x (b+c x)}{b^2}\right )^{2/3}+2^{2/3} \sqrt [3]{-\frac {c x (b+c x)}{b^2}}+1}{\left (-2^{2/3} \sqrt [3]{-\frac {c x (b+c x)}{b^2}}-\sqrt {3}+1\right )^2}} F\left (\text {ArcSin}\left (\frac {-2^{2/3} \sqrt [3]{-\frac {c x (b+c x)}{b^2}}+\sqrt {3}+1}{-2^{2/3} \sqrt [3]{-\frac {c x (b+c x)}{b^2}}-\sqrt {3}+1}\right )|-7+4 \sqrt {3}\right )}{55 c (b+2 c x) \left (-\frac {c \left (b x+c x^2\right )}{b^2}\right )^{4/3} \sqrt {-\frac {1-2^{2/3} \sqrt [3]{-\frac {c x (b+c x)}{b^2}}}{\left (-2^{2/3} \sqrt [3]{-\frac {c x (b+c x)}{b^2}}-\sqrt {3}+1\right )^2}}}+\frac {3 \left (-\frac {c x (b+c x)}{b^2}\right )^{4/3} (b+2 c x) \left (b x+c x^2\right )^{4/3}}{22 c \left (-\frac {c \left (b x+c x^2\right )}{b^2}\right )^{4/3}}+\frac {3 \sqrt [3]{-\frac {c x (b+c x)}{b^2}} (b+2 c x) \left (b x+c x^2\right )^{4/3}}{55 c \left (-\frac {c \left (b x+c x^2\right )}{b^2}\right )^{4/3}} \end {gather*}
Antiderivative was successfully verified.
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Rule 201
Rule 225
Rule 242
Rule 633
Rule 636
Rubi steps
\begin {align*} \int \left (b x+c x^2\right )^{4/3} \, dx &=\frac {\left (b x+c x^2\right )^{4/3} \int \left (-\frac {c x}{b}-\frac {c^2 x^2}{b^2}\right )^{4/3} \, dx}{\left (-\frac {c \left (b x+c x^2\right )}{b^2}\right )^{4/3}}\\ &=-\frac {\left (b^2 \left (b x+c x^2\right )^{4/3}\right ) \text {Subst}\left (\int \left (1-\frac {b^2 x^2}{c^2}\right )^{4/3} \, dx,x,-\frac {c}{b}-\frac {2 c^2 x}{b^2}\right )}{8\ 2^{2/3} c^2 \left (-\frac {c \left (b x+c x^2\right )}{b^2}\right )^{4/3}}\\ &=\frac {3 \left (-\frac {c x (b+c x)}{b^2}\right )^{4/3} (b+2 c x) \left (b x+c x^2\right )^{4/3}}{22 c \left (-\frac {c \left (b x+c x^2\right )}{b^2}\right )^{4/3}}-\frac {\left (b^2 \left (b x+c x^2\right )^{4/3}\right ) \text {Subst}\left (\int \sqrt [3]{1-\frac {b^2 x^2}{c^2}} \, dx,x,-\frac {c}{b}-\frac {2 c^2 x}{b^2}\right )}{11\ 2^{2/3} c^2 \left (-\frac {c \left (b x+c x^2\right )}{b^2}\right )^{4/3}}\\ &=\frac {3 \sqrt [3]{-\frac {c x (b+c x)}{b^2}} (b+2 c x) \left (b x+c x^2\right )^{4/3}}{55 c \left (-\frac {c \left (b x+c x^2\right )}{b^2}\right )^{4/3}}+\frac {3 \left (-\frac {c x (b+c x)}{b^2}\right )^{4/3} (b+2 c x) \left (b x+c x^2\right )^{4/3}}{22 c \left (-\frac {c \left (b x+c x^2\right )}{b^2}\right )^{4/3}}-\frac {\left (\sqrt [3]{2} b^2 \left (b x+c x^2\right )^{4/3}\right ) \text {Subst}\left (\int \frac {1}{\left (1-\frac {b^2 x^2}{c^2}\right )^{2/3}} \, dx,x,-\frac {c}{b}-\frac {2 c^2 x}{b^2}\right )}{55 c^2 \left (-\frac {c \left (b x+c x^2\right )}{b^2}\right )^{4/3}}\\ &=\frac {3 \sqrt [3]{-\frac {c x (b+c x)}{b^2}} (b+2 c x) \left (b x+c x^2\right )^{4/3}}{55 c \left (-\frac {c \left (b x+c x^2\right )}{b^2}\right )^{4/3}}+\frac {3 \left (-\frac {c x (b+c x)}{b^2}\right )^{4/3} (b+2 c x) \left (b x+c x^2\right )^{4/3}}{22 c \left (-\frac {c \left (b x+c x^2\right )}{b^2}\right )^{4/3}}+\frac {\left (3 \left (b x+c x^2\right )^{4/3} \sqrt {-1-\frac {4 c x}{b}-\frac {4 c^2 x^2}{b^2}}\right ) \text {Subst}\left (\int \frac {1}{\sqrt {-1+x^3}} \, dx,x,2^{2/3} \sqrt [3]{-\frac {c x \left (1+\frac {c x}{b}\right )}{b}}\right )}{55\ 2^{2/3} \left (-\frac {c}{b}-\frac {2 c^2 x}{b^2}\right ) \left (-\frac {c \left (b x+c x^2\right )}{b^2}\right )^{4/3}}\\ &=\frac {3 \sqrt [3]{-\frac {c x (b+c x)}{b^2}} (b+2 c x) \left (b x+c x^2\right )^{4/3}}{55 c \left (-\frac {c \left (b x+c x^2\right )}{b^2}\right )^{4/3}}+\frac {3 \left (-\frac {c x (b+c x)}{b^2}\right )^{4/3} (b+2 c x) \left (b x+c x^2\right )^{4/3}}{22 c \left (-\frac {c \left (b x+c x^2\right )}{b^2}\right )^{4/3}}+\frac {\sqrt [3]{2} 3^{3/4} \sqrt {2-\sqrt {3}} b^2 \left (b x+c x^2\right )^{4/3} \sqrt {-1-\frac {4 c x}{b}-\frac {4 c^2 x^2}{b^2}} \left (1-2^{2/3} \sqrt [3]{-\frac {c x (b+c x)}{b^2}}\right ) \sqrt {\frac {1+2^{2/3} \sqrt [3]{-\frac {c x (b+c x)}{b^2}}+2 \sqrt [3]{2} \left (-\frac {c x (b+c x)}{b^2}\right )^{2/3}}{\left (1-\sqrt {3}-2^{2/3} \sqrt [3]{-\frac {c x (b+c x)}{b^2}}\right )^2}} F\left (\sin ^{-1}\left (\frac {1+\sqrt {3}-2^{2/3} \sqrt [3]{-\frac {c x (b+c x)}{b^2}}}{1-\sqrt {3}-2^{2/3} \sqrt [3]{-\frac {c x (b+c x)}{b^2}}}\right )|-7+4 \sqrt {3}\right )}{55 c (b+2 c x) \left (-\frac {c \left (b x+c x^2\right )}{b^2}\right )^{4/3} \sqrt {-1-\frac {4 c x (b+c x)}{b^2}} \sqrt {-\frac {1-2^{2/3} \sqrt [3]{-\frac {c x (b+c x)}{b^2}}}{\left (1-\sqrt {3}-2^{2/3} \sqrt [3]{-\frac {c x (b+c x)}{b^2}}\right )^2}}}\\ \end {align*}
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Mathematica [C] Result contains higher order function than in optimal. Order 5 vs. order 4 in
optimal.
time = 10.03, size = 48, normalized size = 0.11 \begin {gather*} \frac {3 b x^2 \sqrt [3]{x (b+c x)} \, _2F_1\left (-\frac {4}{3},\frac {7}{3};\frac {10}{3};-\frac {c x}{b}\right )}{7 \sqrt [3]{1+\frac {c x}{b}}} \end {gather*}
Antiderivative was successfully verified.
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Maple [F]
time = 0.04, size = 0, normalized size = 0.00 \[\int \left (c \,x^{2}+b x \right )^{\frac {4}{3}}\, dx\]
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Failed to integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \left (b x + c x^{2}\right )^{\frac {4}{3}}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.23, size = 36, normalized size = 0.08 \begin {gather*} \frac {3\,x\,{\left (c\,x^2+b\,x\right )}^{4/3}\,{{}}_2{\mathrm {F}}_1\left (-\frac {4}{3},\frac {7}{3};\ \frac {10}{3};\ -\frac {c\,x}{b}\right )}{7\,{\left (\frac {c\,x}{b}+1\right )}^{4/3}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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