$\left(\left(x+1\right)-y\right)^3$
$\left(15\right)-\left(-25\right)$
$\sin\left(a\right)\frac{2}{5}+\cos^2\left(a\right)=1$
$\frac{\left(x^2+4x+100\right)}{x+25}$
$4x^2+2x+10$
$\lim_{x\to-0}\left(\frac{7x^4-14x}{x}\right)$
$4x+5y+4z+8x+7y-2z+3x-y$
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