$12x^2+72x+77$
$\left(5x+8\right)\left(5x-5\right)$
$40\:-16+12+60-15$
$2x+\frac{y}{x}^3+\frac{x^2}{y}-1$
$\frac{2x^3-5x+7}{x+24}$
$\left(z+1\right)^2+\left(z+1\right)+15$
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