$\int y^3\cdot\sqrt{y^2+4}dy$
$x^3+5x^2+2x-8$
$\sin^2a+\tan^2a+\cos^2a-\sec^2a=0$
$-5\::\:1$
$\int2e^{-3x}dx$
$x^2+bx+\frac{b}{2}$
$\cos\left(x\right)^3+\sin\left(x\right)^2\cos\left(x\right)$
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