$h^2+10h-11=0$
$-4a^2+3a^2$
$-2^0-3^{-2}$
$2\left(3m^{10}\cdot2m^2\right)$
$\tan\left(x+\frac{\pi}{4}\right)=sec\left(2x\right)+tan\left(2x\right)$
$\frac{15}{3}\:\:\:\:\:\frac{20}{4}$
$\frac{a^{2n}b^{5m}}{a^{3n}b^{2m}}$
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