$\lim_{x\to1}\left(\frac{x^2-1}{x^3-2x^2+2x-1}\right)$
$5x+x^2-2x+x^2$
$\left(a^2b^5\right)\left(-a^8b^2\right)\left(-ab^7\right)$
$2x+5>4x-8$
$\frac{1}{16}\int\cos^3\left(x\right)dx$
$\lim_{x\to\infty}\left(\frac{3}{x}\csc\frac{5}{x}\right)$
$x^2+9x+9$
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