$\left(4ab^2c^3\right)\left(5a^3\right)$

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

$\frac{d}{dx}2^x$

$6x^3+12x^2-90x-216$

$\lim_{x\to-2}\left(\frac{x^2-4}{x^2+6x+8}\right)$

$\int2\sin^2\left(x\right)\cdot\cos^3\left(x\right)dx$

$\frac{1}{2}x^4+3x^3-6x^2+4x$