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Calculus Evaluating Integral

0 votes
integral(x^2*sqrt(x+4))
asked Feb 26, 2013 in CALCULUS by rockstar Apprentice

1 Answer

0 votes

Integration by substitution method :

image.

Let, u = x + 4 ⇒ x = u - 4.

du = dx

Now ,image

image

image

image

image

image

Recall the formula : ʃxndx = [xn+1/n+1] + C.

image

image

image

image

image

Put, u = x + 4.

image

image

image

image.
Therefore, image image.

answered Jul 30, 2014 by lilly Expert

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