$\frac{\sin\left(5x\right)}{\sin\left(x\right)}-\frac{\cos\left(5x\right)}{\cos\left(x\right)}=4\cos\left(2x\right)$

$\frac{3q^3-102q^2+1050q}{q}$

$\int_2^4\left(x^3\right)\left(4x^4-3\right)^4dx$

$m^2-6mn+13mn-16$

$\cos\left(x\right)\cdot\frac{\sin\left(x\right)}{\tan\left(x\right)}$

$\:2\left(3z\right)$

$\frac{24x^3+10x^2-62x+15}{4x-5}$