$6-0.73$
$16x^2-122$
$2\left(y+5\right)=16$
$2a^2b+5ab^2-8ab+5-3ab^2+a^2b+8ab-4ab^2$
$\left(3x^{n+1}+7y^n\right)\left(3x^{n+1}-7y^n\right)$
$\int_0^1\left(e^{-4x}x^3\right)dx$
$4\left(b+2\right)=6\left(b-1\right)$
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