$-5tan\left(x\right)-14=tan\left(x\right)-7$
$\int\frac{x^5-x^4+2x^3-x}{x^3+1}dx$
$2b^2+88a-88a$
$\sin\left(x\right)+4\cos\left(5y\right)=4$
$76\cdot51$
$f\left(x\right)=-4x^2+4$
$\lim_{x\to0}\left(\frac{x^2}{x-4}\right)$
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