$36x^2-9$
$-5x+10\le-15$
$36\cdot36$
$29-3\cdot\left(12-7\right)$
$\frac{\csc\left(x\right)^2}{\cos\left(x\right)}=\frac{\sec\left(x\right)}{\sin\left(x\right)^2}$
$912+334$
$\left(x+a\right)^2\left(x-a\right)^2$
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