$\int x\left(0.6+\frac{0.1}{\sqrt[3]{x}}\right)dx$

$2\sin^2\left(2x\right)=3\sin^2\left(x\right)+\sin^2\left(2x\right)$

$\left(13-a^2b^2\right)^2$

$\int\frac{y+1}{4}dy$

$-3m\:-\:6m^2$

$4x^2+2x-5=0$

$\frac{\cos\left(5x\right)-\cos\left(15x\right)}{\sin\left(15x\right)-\sin\left(5x\right)}$