$\lim_{x\to0.1}\left(\frac{2x^2-7x+3}{x}\right)$

$\left(5x^{a+2}-2y^{b+3}\right)^2$

$\int\left(x^6+x^{10}\right)^{.5}dx$

$cos^2x\:+\:qcos^2x\:=1$

$\int\left(x-2\right)e^{3x}dx$

$\int\frac{2x^2-x+7}{\left(x-6\right)\left(x^2+x+5\right)}dx$

$2^x\infty2^3\infty2^1$