$\frac{2x^2+x}{\left(x-1\right)\left(x+1\right)^2}$
$\left(-3x+2\right)\left(3x+2y\right)$
$\left(7x^2\right)^2+24\left(7x^2\right)+128$
$\left(x^{\left(a+1\right)}-y^{\left(b+2\right)}\:\right)^2$
$\frac{12a^2\:+8a+24}{2}$
$9h^2-54h+81$
$\left(-8\right)\left(-5\right)\left(-2\right)$
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