$2\cos^2\left(x\right)=\sqrt{3}\cos\left(x\right)$
$15x^2+7x=2$
$4x^3-8x^2+3x-1+4x^3-8x^2+3x-1$
$10^{\left(8x^5+4x^4\right)}$
$u^2-3u-6$
$\frac{y}{x^3}=1$
$\left(1+\tan\left(y\right)\right)\left(1-\cot\left(y\right)\right)$
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