$1x^2+2x+\left(\frac{2}{2}\right)^2$
$\left(\:6a+b\right)^2$
$\csc2x^2-\cot\left(2x\right)=1$
$\sqrt{x}+\sqrt{x+7\:}=7$
$x-3\le12$
$225-10w+55z$
$tan\left(x\right)=\frac{1}{3}$
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