SOLUTION: Find all real number solutions for the equation 7x 3 + 252x = 0

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Question 634740: Find all real number solutions for the equation 7x 3 + 252x = 0
Answer by unlockmath(1688) About Me  (Show Source):
You can put this solution on YOUR website!
Hello,
This,7x 3 + 252x = 0 I suspect is written as:
7x^3 + 252x = 0
IF so, then divide by 7x to get:
x^2 + 36 = 0
Subtract 36
x^2=-36
Sq root both sides and we end up with imaginary number:
x=6i
Make sense?
RJ
www.math-unlock.com