What is the integral of (x^3+8x)^2(3x^2+8) ?

The integral of (x^3+8x)^2(3x^2+8) is ((x^3+8x)^3)/3+C

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integral of (x^3+8x)^2(3x^2+8)

\int (x^{3} + 8 x)^{2} (3 x^{2} + 8) d x

\frac{( x ^{3} + 8 x ) ^{3}}{3} + C

Solution steps

\int (x^{3} + 8 x)^{2} (3 x^{2} + 8) d x

Apply u-substitution

= \int u^{2} d u

Apply the Power Rule

= \frac{u ^{3}}{3}

Substitute back

u = x^{3} + 8 x

= \frac{( x ^{3} + 8 x ) ^{3}}{3}

Add a constant to the solution

= \frac{( x ^{3} + 8 x ) ^{3}}{3} + C

What is the integral of (x^3+8x)^2(3x^2+8) ?
The integral of (x^3+8x)^2(3x^2+8) is ((x^3+8x)^3)/3+C