$\int x^4e^{-x^5}dx$

$\left(-2^2-7\right)+5^2$

$2\sin^2\left(0\right)-\sin\left(0\right)-1$

$4n^2+8n^2$

$\left(x-2\right)\left(x-2\right)^2$

$\int\left(\left(2x+8\right)\left(x^2+8x+9\right)^4\right)dx$

$\int sen\left(\pi x\right)\sqrt{1+\pi^2\left(cos\left(\pi x\right)\right)^2}dx$