3.5.47 \(\int (d+e x)^m \sqrt {b x+c x^2} \, dx\) [447]

Optimal. Leaf size=105 \[ \frac {(d+e x)^{1+m} \sqrt {b x+c x^2} F_1\left (1+m;-\frac {1}{2},-\frac {1}{2};2+m;\frac {d+e x}{d},\frac {c (d+e x)}{c d-b e}\right )}{e (1+m) \sqrt {-\frac {e x}{d}} \sqrt {1-\frac {c (d+e x)}{c d-b e}}} \]

[Out]

(e*x+d)^(1+m)*AppellF1(1+m,-1/2,-1/2,2+m,(e*x+d)/d,c*(e*x+d)/(-b*e+c*d))*(c*x^2+b*x)^(1/2)/e/(1+m)/(-e*x/d)^(1
/2)/(1-c*(e*x+d)/(-b*e+c*d))^(1/2)

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Rubi [A]
time = 0.04, antiderivative size = 105, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, integrand size = 21, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.095, Rules used = {773, 138} \begin {gather*} \frac {\sqrt {b x+c x^2} (d+e x)^{m+1} F_1\left (m+1;-\frac {1}{2},-\frac {1}{2};m+2;\frac {d+e x}{d},\frac {c (d+e x)}{c d-b e}\right )}{e (m+1) \sqrt {-\frac {e x}{d}} \sqrt {1-\frac {c (d+e x)}{c d-b e}}} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[(d + e*x)^m*Sqrt[b*x + c*x^2],x]

[Out]

((d + e*x)^(1 + m)*Sqrt[b*x + c*x^2]*AppellF1[1 + m, -1/2, -1/2, 2 + m, (d + e*x)/d, (c*(d + e*x))/(c*d - b*e)
])/(e*(1 + m)*Sqrt[-((e*x)/d)]*Sqrt[1 - (c*(d + e*x))/(c*d - b*e)])

Rule 138

Int[((b_.)*(x_))^(m_)*((c_) + (d_.)*(x_))^(n_)*((e_) + (f_.)*(x_))^(p_), x_Symbol] :> Simp[c^n*e^p*((b*x)^(m +
1)/(b*(m + 1)))*AppellF1[m + 1, -n, -p, m + 2, (-d)*(x/c), (-f)*(x/e)], x] /; FreeQ[{b, c, d, e, f, m, n, p},
x] &&  !IntegerQ[m] &&  !IntegerQ[n] && GtQ[c, 0] && (IntegerQ[p] || GtQ[e, 0])

Rule 773

Int[((d_.) + (e_.)*(x_))^(m_)*((a_.) + (b_.)*(x_) + (c_.)*(x_)^2)^(p_), x_Symbol] :> With[{q = Rt[b^2 - 4*a*c,
2]}, Dist[(a + b*x + c*x^2)^p/(e*(1 - (d + e*x)/(d - e*((b - q)/(2*c))))^p*(1 - (d + e*x)/(d - e*((b + q)/(2*
c))))^p), Subst[Int[x^m*Simp[1 - x/(d - e*((b - q)/(2*c))), x]^p*Simp[1 - x/(d - e*((b + q)/(2*c))), x]^p, x],
x, d + e*x], x]] /; FreeQ[{a, b, c, d, e, m, p}, x] && NeQ[b^2 - 4*a*c, 0] && NeQ[c*d^2 - b*d*e + a*e^2, 0] &
& NeQ[2*c*d - b*e, 0] &&  !IntegerQ[p]

Rubi steps

\begin {align*} \int (d+e x)^m \sqrt {b x+c x^2} \, dx &=\frac {\sqrt {b x+c x^2} \text {Subst}\left (\int x^m \sqrt {1-\frac {x}{d}} \sqrt {1-\frac {c x}{c d-b e}} \, dx,x,d+e x\right )}{e \sqrt {1-\frac {d+e x}{d}} \sqrt {1-\frac {d+e x}{d-\frac {b e}{c}}}}\\ &=\frac {(d+e x)^{1+m} \sqrt {b x+c x^2} F_1\left (1+m;-\frac {1}{2},-\frac {1}{2};2+m;\frac {d+e x}{d},\frac {c (d+e x)}{c d-b e}\right )}{e (1+m) \sqrt {-\frac {e x}{d}} \sqrt {1-\frac {c (d+e x)}{c d-b e}}}\\ \end {align*}

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Mathematica [A]
time = 0.36, size = 76, normalized size = 0.72 \begin {gather*} \frac {2 x \sqrt {x (b+c x)} (d+e x)^m \left (\frac {d+e x}{d}\right )^{-m} F_1\left (\frac {3}{2};-\frac {1}{2},-m;\frac {5}{2};-\frac {c x}{b},-\frac {e x}{d}\right )}{3 \sqrt {\frac {b+c x}{b}}} \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[(d + e*x)^m*Sqrt[b*x + c*x^2],x]

[Out]

(2*x*Sqrt[x*(b + c*x)]*(d + e*x)^m*AppellF1[3/2, -1/2, -m, 5/2, -((c*x)/b), -((e*x)/d)])/(3*Sqrt[(b + c*x)/b]*
((d + e*x)/d)^m)

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Maple [F]
time = 0.10, size = 0, normalized size = 0.00 \[\int \left (e x +d \right )^{m} \sqrt {c \,x^{2}+b x}\, dx\]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((e*x+d)^m*(c*x^2+b*x)^(1/2),x)

[Out]

int((e*x+d)^m*(c*x^2+b*x)^(1/2),x)

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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.

[In]

integrate((e*x+d)^m*(c*x^2+b*x)^(1/2),x, algorithm="maxima")

[Out]

integrate(sqrt(c*x^2 + b*x)*(x*e + d)^m, x)

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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.

[In]

integrate((e*x+d)^m*(c*x^2+b*x)^(1/2),x, algorithm="fricas")

[Out]

integral(sqrt(c*x^2 + b*x)*(x*e + d)^m, x)

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Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \sqrt {x \left (b + c x\right )} \left (d + e x\right )^{m}\, dx \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((e*x+d)**m*(c*x**2+b*x)**(1/2),x)

[Out]

Integral(sqrt(x*(b + c*x))*(d + e*x)**m, x)

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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.

[In]

integrate((e*x+d)^m*(c*x^2+b*x)^(1/2),x, algorithm="giac")

[Out]

integrate(sqrt(c*x^2 + b*x)*(x*e + d)^m, x)

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Mupad [F]
time = 0.00, size = -1, normalized size = -0.01 \begin {gather*} \int \sqrt {c\,x^2+b\,x}\,{\left (d+e\,x\right )}^m \,d x \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((b*x + c*x^2)^(1/2)*(d + e*x)^m,x)

[Out]

int((b*x + c*x^2)^(1/2)*(d + e*x)^m, x)

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