$16xy-10-4xy$

$\lim_{x\to\infty}\left(\frac{e^{2x}}{\sqrt{x}}\right)$

$x\frac{dy}{dx}-y+x=0$

$4\left(\cos\left(x\right)\right)^2+4\cos\left(x\right)-1$

$\int_{1000}^{1500}\left(x+100\right)dx$

$\sin\left(90-x\right)\csc\left(270-x\right)$

$\left(x+1\right)\left(x-3\right)=0$