$9t^{2-36tp+36p^2}$

$6a\left(x+1\right)+8a\left(x+1\right)$

$-679+-853$

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

$\frac{10x^2-17x+3}{2x-3}$

$\frac{dy}{dx}=\frac{-y}{2y-x}$

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