SOLUTION: I need to find all the real roots of this equation x^3+3x^2-9x-27=0 by using the rational root theorem.?

SOLUTION: I need to find all the real roots of this equation x^3+3x^2-9x-27=0 by using the rational root theorem.?

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Question 915497: I need to find all the real roots of this equation x^3+3x^2-9x-27=0 by using the rational root theorem.?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
x-(-3) is a factor
-3 is a zero
Quotient is 1x^2+0x-9
1x^2+0x-9=x^2-9=(x+3)*(x-3)
real roots/zeroes are -1,3,-3

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