$3yx^2-2y=x$

$\lim_{x\to\infty}\left(\frac{2x^3-x+1}{x^3-4x+3}\right)$

$3x^2+\:23x\:-\:8$

$\lim_{x\to0}\left(\frac{\left(sin\:8x\right)}{sin\:2x}\right)$

$\sqrt{a}^2+x^2$

$\left(4^{\frac{1}{2}}\right)\cdot\left(2^{-3}\right)\cdot\left(\sqrt[3]{27}\right)$

$4\cdot\left(-5\right)\cdot7$