$\int\frac{1}{\left(x-4\right)\left(x+5\right)}dx$

$+32-\left(-7\right)+\left(-32\right)-\left(-32\right)+\left(+42\right)$

$\sin\left(\pi+x\right).\cos\left(\pi-x\right).\tan\left(x\right)$

$\log_{a^2}\left(2^2y^6\right)+2\log_a\left(\frac{1}{y^3\left(\sqrt{2}\right)}\right)-3\frac{\log\left(\frac{2}{4}\right)}{\log\left(a\right)}$

$\frac{\tan\left(x\right)sin\left(x\right)^2}{1-\cos\left(x\right)}$

$\left(-17\right)-\left(-35\right)$

$\left(3x^2+2y^2-3\right)-\left(2x^2+y^2-2x\right)$