$3x-10=x+40$
$2\tan\left(x\right)+\cos x=\cos^2x+\frac{2\sin x}{\cos x}$
$\log\left(\sqrt{3x+5}\right)+\log\left(\sqrt{x}\right)=1$
$\left(3x+2\right)\left(2x+4\right)$
$\left(12xy-\frac{4}{3}y^2\right)^2$
$\left(x+y-z\right)^3$
$u^2+6+10$
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