$x^2-120x=-1100$
$2h^2-5h=-1$
$\int\frac{1}{\left(x+1\right)\left(n-x\right)}dx$
$-x^3-15x^2-15x-125$
$a^2+b^2=12$
$30x^2-29x+4$
$\left(4a-5d\right)^3$
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