$\left(\ln\left|x^2\right|\right)\left(6x^3\right)-\int\left(6x^3\right)\left(\frac{2}{x}\right)dx$

$\frac{x}{4}=5$

$\frac{2x^3-6x^2-5x+15}{x-3}$

$\left(x\left(a-1\right)-3x\left(a-2\right)\right)^2$

$\int\left(\frac{1}{\sqrt[3]{x}}+1\right)^2dx$

$\frac{8x^2-2x}{2x}$

$\frac{2a^2+2b^2}{2}$