$2-4\cos^2\left(x\right)=2\sin\left(x\right)$
$-112+82-37-51+96+63$
$m^2+22m+121$
$\lim_{x\to\infty}\frac{-3x^2+14x-1}{x^2+79}$
$m\left(m+2\right)^2\cdot m\left(m+2\right)^4$
$\frac{a^{-2}a^6}{a}$
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