$25m^2-9$
$\left(\frac{3}{4}a+\frac{1}{4}b\right)^3$
$\frac{1}{1+y}\frac{dy}{dx}=\frac{1}{x^2}$
$\int\frac{x^2+4}{x^2\left(x-4\right)}dx$
$8x\:+\:3\:+\:5x\:+\:6x\:+\:8$
$2cos^4x-cos^2x=0$
$\left(3-9y\right)\left(2-5y\right)$
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