$10cos^2\left(x\right)+cos\left(x\right)-11$
$\lim_{x\to-3}-\left(\frac{x^2}{x+3}\right)$
$2\left(p+8\right)$
$\ln e^{3x}$
$\lim_{x\to\infty}\left(\frac{ln10^x}{4^x}\right)$
$15x^2+20x+12$
$-r\:+\:6\:+\:8\:-\:14$
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