$196x^2-140x+56$
$-144b^4+49$
$\frac{1}{9}m^6-1$
$345-234<567-111$
$\int\frac{4}{4y-y^2}dy$
$\tan\left(x\right)^2\frac{1}{\sin\left(x\right)^2}-1=\tan\left(x\right)^2$
$\cot\left(x\right)\sin\left(x\right)^2=\cos\left(x\right)$
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