$\left(x^4\:+\:y^4\right)dx\:-\:xy^3\:dy\:=\:0$

$\left(-5.3\right)\left(-9.2\right)$

$\int\:\left(3x+1\right)\left(3x^2+2x\right)^5dx$

$\frac{d}{dx}\sqrt{x^2-y^2}$

$\left(3x^2-7\right)\cdot\left(3x^2+7\right)$

$y-37=\frac{1}{96}\left(x+1\right)$

$\left(x+3y\right)\left(x+2\right)$