$7\:-\:8\:+\:4\:-\:10\:+\:6$
$\left(2ab+a^3b^3\right)$
$\:\left(-7x-2\right)^3$
$-10x^4y^3z^2-9x^3y^7z^3$
$\lim_{x\to\infty}\left(\frac{1+x^2}{x+1}\right)^{\frac{x+5}{x}}$
$144x^2\:+\:264x\:+\:121$
$\int\left(\frac{3x+1}{x^2+9}\right)dx$
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