$\int f^3\sqrt{2f+3}dx$

$sin^4\left(x\right)+2cos^2\left(x\right)-cos^4x=1$

$\int\left(\frac{x-60}{x^2\left(x+4\right)}\right)dx$

$\:y\:=\:3x\:+\:2,\:x=2$

$\left(x^7-3\right)\left(x^2-7\right)\left(-9x^7-1x^2\right)\left(4-x\right)$

$xy=4x$

$\frac{d}{dx}e^{2x+7}e^{6-2x}$