Question

What am i doing wrong here?

Answer 1

is there a better way to integrate this:\[ \frac{1}{{(b-a)}^2} \int\limits_{a}^{b}x(b-x)^2 \text{d} x\]

Answer 2

assume (b-x)^2 = u, -2xdx = du

Answer 3

ill try that..