$\int\frac{6x^2-8x+3}{\left(1-x\right)^3}dx$

$3\infty-2$

$\int e^t\cdot sec^2\left(e^t\right)dt$

$-2\left(-1\right)^5-3\left(-1\right)^3+2\left(-1\right)+1$

$\sin\left(0\right)\cos\left(0\right)\sec\left(0\right)\csc\left(0\right)=1$

$4x\left(9x-y^2\right)$

$-571-\left(-497\right)$