$\left(\frac{4}{7}x^5y^4-2\right)^2$

$2x^2-9x-1$

$\lim_{x\to\infty}\left(\frac{2x}{\sin\left(3x\right)}\right)$

$\sqrt{64r^2}$

$\int\left(\frac{7}{15sin\left(x\right)-8cos\left(x\right)}\right)dx$

$\int\left(\frac{8x^3}{5+2x^4}\right)dx$

$\left(2x^2=3\right)\left(2x^2-3\right)$