$10\cdot\frac{1}{10}$

$53\cdot5$

$2y^4-50y^2$

$\frac{\cos\left(x\right)^2}{\sin\left(x\right)\left(1+\sin\left(x\right)\right)}$

$\int_0^{\infty}\left(\frac{x\ln\left(x\right)}{\left(1+x^2\right)^2}\right)dx$

$\left(2a^2-3b^3\right)\left(2a^2+3b^3\right)$

$\frac{\left(\cos\left(b\right)\right)}{1+\left(\sin\left(b\right)\right)}+\frac{1+\sin\left(b\right)}{\cos\left(b\right)}$