$\left(x+8\right)\left(x+7\right)-56$

$\int_0^{\pi}\left(2\sin\left(x\right)+2\right)\left(-2\sin\left(x\right)\right)dx$

$512+128+3+8$

$\log\left(x-1\right)+\log\left(x+2\right)=1$

$\int2^{3x-1}dx$

$\frac{secy}{tany+\cot y}$

$\frac{\frac{1}{cos\left(x\right)}-cos\left(x\right)}{sin\left(x\right)}$