$5^2-20s+100$

$\frac{d^2}{dx^2}\left(x^4+y^2=17\right)$

$8\cos\left(v\right)^2-6\cos\left(v\right)+1=0$

$\int\frac{\left(e^{2x}+x\right)}{e^{2x}+x^2}dx$

$\left(1+ln\left(y\right)\right)dx=0$

$\left(-7x^2\right)\left(7x^2\right)$

$\left(x-2\right)\left(x^2+8x-1\right)$