$\left(4a^3-3a^2+5a\right)\left(2a^2+7a-8\right)$

$\int_1^{10}\left(x^3-5\right)^2x^2dx$

$\frac{x^3+7x^2+4x-12}{x+6}$

$z^2-10z$

$\int_0^{\infty}\left(\sin\left(x\right)e\right)dx$

$\cos^2x+28\cos x+196$

$\frac{\sin\left(x\right)}{\sqrt{1-\sin^2\left(x\right)}}=\csc\left(x\right)$