$\int\left(\frac{9x^2}{\sqrt{x^2-4}}\right)dx$
$\frac{6x^4+23x^2+4x+15}{x^2+3}$
$3\sin^2x-7\sin x-6$
$\left(x-8y\right)\left(x+8y\right)$
$\left(2xy^2-3\right)\cdot dx+\left(2x^2y+4\right)\cdot dy=0$
$6s-4=8\left(2+\frac{1}{4}s\right)$
$\sqrt[4]{m^7}n^{15}$
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