$\cos\left(\frac{x}{4}\right)^2$
$f^2+17f+72$
$y\cdot y^7$
$3\:a^2b^3-40d\:;\:a=1;\:b=2\:;\:c\:=3;\:d\:=\frac{1}{2}$
$-2x^2+30x=112$
$-9+\log_{12}\left(x\right)=-5$
$\int\:\frac{1}{\sqrt{\left(3+x^2\right)^3}}dx$
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