$3x^2-36=0$
$f\left(x\right)=\left(\sqrt{x^2+1}\right)^3$
$\cos\left(2t\right)=\cos^4\left(t\right)-\sin^4\left(t\right)$
$x^3-y^2x^2$
$x^2-9x+14<0$
$\frac{dy}{dx}=\frac{sen\sqrt{x}}{\sqrt{y}}$
$\left(3a^n+2b^n+1\right)^2$
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