$9x+8=7x+6$
$3y+7+4\left(y+4\right)$
$x^2+14x=32$
$x^2+2x-42=0$
$\left|3529\right|$
$\left(\frac{x^2+1}{x^8}\right)^2$
$\left(1-\cos^2x\right)\left(1-cot^2x\right)$
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