$\int\left(7e^{-5y}\left(3+e^{-5y}\right)^3\right)dy$
$-1+12+-3$
$\frac{x^7+2x^3-4x+5}{x-2}$
$\left(x^2\:^n+\:y^3\:^m\right)^2$
$\frac{5}{21}+\frac{10}{21}+\frac{23}{21}+\frac{4}{21}$
$5xy^'+3xy=x\cos\left(2x\right)^{\:\:}+x$
$\frac{d}{dx}7\:\sin\left(x^2\right)$
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