$\lim_{x\to-5}10$
$\left(9+2b\right)^3$
$-34x^4y^5z^3\:+\:51x^3y^3z^3\:-\:85x^3y^2z^3$
$100a^2b^2+25f^2$
$\frac{x^2-4}{x-1}$
$\left(7a+4\right)+\left(2a+9\right)$
$\int\left(sin^6x-8sin^2x-sinx\right)cosxdx$
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