$\int x\cdot x^2e^{2x}dx$

$-\left(\frac{-14}{2}\right)^{2}$

$\left(x^3+1\right)\cdot\left(x^2-4x+5\right)$

$\left(a^4+a\cdot b^3-a^3b-b^4\right)\cdot2\cdot\left(a^2+b^2\right)$

$x^2\frac{dw}{dx}=\sqrt{w}\left(4x+2\right)$

$\int\frac{1}{x-h\cdot\sqrt{x}}dx$

$\left(6x+4y\right)\:\left(6x-4y\right)$