$3y+y+20=180$
$\int\left(1+16\cos\left(x\right)^2\right)dx$
$x^2-3y-3-y^2+7y-3+3y^2$
$\left(x^2-3y^2\right)^2\left(x^2+3y^2\right)$
$\frac{b^6}{b^{14}}$
$5\left(3x+2\right)-7$
$100\left(x+y\right)^2-36\left(x-y\right)^2$
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