$\left(3x+1\right)^2\:$
$\frac{x}{4}+2=6$
$\left(y^c\right)^d$
$\lim_{x\to-1}\left(\frac{8x^4+9x^3+9x+10}{x-1}\right)$
$9x^2<25$
$\left(b-2y\right)^2$
$\sin^2e\left(1+\cot^2e\right)=1$
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