$x^2\left(x+1\right)+x+1$
$\sqrt{\left(a^2+b^2\right)}^2\:-\left(2ab\right)^2$
$\int\frac{x^3+x-2}{x+1}dx$
$\left(5x+1\right)^2+5\left(x-1\right)^2$
$-7a=-10-9a$
$\frac{7a}{\sqrt{7}}$
$\int e^{-x}\left(2-2x\right)dx$
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