$\int\frac{4x^5+2x^3-24x^2-18x}{x^2-3x}dx$

$6\left(-a\sqrt{y+x}\right)^2\cdot\left(-b^3\sqrt[4]{z}\right)^2$

$\lim_{x\to0}\left(\frac{\ln\left(8x^2+19x\right)}{\ln\left(x\right)}\right)$

$\left(2x^{3}+y^{2}-6z^{5}\right)\left(2x^{3}+y^{2}+6z^{5}\right)$

$2x^2-4+3x-3x^2$

$x+2>2-x$

$\frac{d^2y}{dx^2}\left(9x^2+4x\right)$