$3x+2\ge1-x$
$-8x+5=-11$
$\left(6n^2-7n+8\right)-\left(-7n\right)$
$\frac{x^4+2}{x^2+5x+2}$
$\int\cos\frac{x}{7}dx$
$\int\frac{1}{\left(2x+3\right)^4}dx$
$\lim_{x\to0}\left(xe^{\left(\frac{1}{x}\right)}\right)$
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