$\int\frac{1}{u^2+u}du$
$\left(6x^2+4y^2\right)\left(y^2\right)$
$\left(-1-\frac{3i}{n}\right)^2$
$4x^2+3x^2+5x-4$
$2^3b^2-2a^3b$
$\left(2x^3-8-5x^2\right)\left(5x^2+2x^3+8\right)$
$-\:32\:-1\:-17\:-10$
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