$a^5+2a^4+11a^3+\:10a^2+25a$
$\left(a^{x+1}+1\right)^2$
$-5\sqrt{243}$
$\frac{x^3+27}{3+x}$
$\int\cos^2y\:\cot\left(y\right)dy$
$\left(8x\:+\:7x\right)+\left(9x\:-\:2x\right)$
$\left(\frac{3}{3}m^{2}\right)+2\left(\frac{1}{2}n^{2}\right)$
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