$c^2+30c+225$
$\left(-2x+5\right)^2+2\left(-2x+5\right)-1$
$\int\frac{2x-3}{\left(x+5\right)\left(x+1\right)}dx$
$9x^2<1$
$m^2+3m+2.25$
$\left(2+\:a^2-2a\right)\left(a+1\right)$
$\sec^2x\cdot\cos^2x$
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