$\int\frac{8}{x^2-10x+34}dx$
$2\frac{dy}{dx}-2=4e^x$
$\left(60a+10b-9c+d-4\right)+\left(a+100b-6c+8d-9\right)$
$\left(1^2\cdot7\right)\cdot\left(8^2-8\right)\cdot1$
$81-5x\le108-8x$
$5\left(3x\:+\:2y\right)\:=\:15x\:+\:10y$
$\lim_{x\to2}\left(x^2\:+\:2x\:-\:1\right)$
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