$9x^2-16=0$

$\left(6s^4-10t^4\right)\left(6s^4+10t^4\right)$

$-1\left(x+3\right)^2\cdot\left(x-1\right)$

$\int\frac{\left(\sqrt{u}+3\right)^4}{\sqrt{u}}dx$

$\left(-24v^3w^2\right)-\left(12.3v^3w^2\right)$

$s^3+8s^2+19s+12$

$\lim_{x\to0}\left(\left(cos\left(5x\right)+7x\right)^{\frac{3}{x}}\right)$