SOLUTION: please help me answer and show me the work steps to this question. the cube of a number equals nine times the number.what is the number

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: please help me answer and show me the work steps to this question. the cube of a number equals nine times the number.what is the number      Log On


   

Question 5039: please help me answer and show me the work steps to this question.
the cube of a number equals nine times the number.what is the number
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Let n = the number.
n^3 = 9n Divide both sides by n
n^2 = 9 Take the square root of both sides.
n = +/- 3
Both 3 and -3 will work here.