$\int\frac{\sec^3\left(x\right)\tan\left(x\right)}{1+\tan^2\left(x\right)}dx$
$\frac{dy}{dx}\left(x^2+y=m^2\right)$
$ab-12a+12a$
$4x\left(x^2-4\right)$
$\sqrt{100}x^2y^2$
$\left(z+1\right)\left(z-1\right)$
$x^2-22x-75=0$
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