$9x^2-36xy-36y^2$
$\int\left(\left(7cos\left(x\right)+1\right)^2-\left(7sin\left(x\right)+1\right)^2\right)dx$
$x\cdot x^2\left(x^2+1\right)$
$\left(3a^2+8b^2\right)^2$
$x^2+2\left(43x-153\right)+\frac{1296}{x+4}$
$-4\left(8+13-9\right)-3\left(-6-11\right)$
$5-x>7$
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