SOLUTION: Solve equation by using factoring. 7x^3 - 28x = 0

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Question 108988: Solve equation by using factoring.
7x^3 - 28x = 0
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
7x%5E3-28x=0
x%287x%5E2-28%29=0
x=0 is one solution.
Next solve for
7x%5E2-28=0
7x%5E2=28
x%5E2=4
x=2 and x=-2
The solutions are x=0,-2,2.