$\int\left(x\cdot\sin\left(\sqrt{x}\right)\right)dx$

$\left(\frac{5}{4}x^a+\frac{3}{5}y^2\right)\left(\frac{5}{4}x^a-\frac{3}{5}y^2\right)$

$\int cos\:x\:ln\left(\sin x\right)dx$

$\left(2x-1\right)\left(2x+1\right)\left(4x^2-2x+1\right)$

$m+n-g+-m-n+g$

$16x\:^6-72x^3+81$

$\frac{2x^{3}-13x^{2}+9x-16}{x-6}$