$8-2\:x\:2+6+7\:x\:3-3\:x\:4+16$
$y=\left(\frac{2x}{x^2-1}\right)^3$
$\sqrt{\sqrt{\frac{\sqrt{1x^8y^2}}{\sqrt{1x^1y^2}}}}$
$2\tan^2-3\tan+1$
$a^x-a^7=0$
$9v=7v+14$
$\left(x+h\right)\left(x-1\right)$
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