Solve for p
p=\frac{4q^{2}-r}{3}
Solve for q
q=\frac{\sqrt{3p+r}}{2}
q=-\frac{\sqrt{3p+r}}{2}\text{, }p\geq -\frac{r}{3}
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3p=4q^{2}-r
The equation is in standard form.
\frac{3p}{3}=\frac{4q^{2}-r}{3}
Divide both sides by 3.
p=\frac{4q^{2}-r}{3}
Dividing by 3 undoes the multiplication by 3.
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