Move 9 to the left side of the equation by subtracting it from both sides.
Factor 3 out of 3r3-9.
Factor 3 out of 3r3.
Factor 3 out of -9.
Factor 3 out of 3r3+3⋅-3.
Divide each term by 3 and simplify.
Divide each term in 3(r3-3)=0 by 3.
Cancel the common factor of 3.
Cancel the common factor.
Divide r3-3 by 1.
Divide 0 by 3.
Add 3 to both sides of the equation.
Take the cube root of both sides of the equation to eliminate the exponent on the left side.
The result can be shown in multiple forms.
Solve for r 3r^3=9