SOLUTION: Find all of the real and imaginary roots, stating the multiplicity of each. 16) (x + 1)^2(x - 1) = 0

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Find all of the real and imaginary roots, stating the multiplicity of each. 16) (x + 1)^2(x - 1) = 0      Log On


   

Question 127517This question is from textbook College Algebra
: Find all of the real and imaginary roots, stating the multiplicity of each.
16) (x + 1)^2(x - 1) = 0 This question is from textbook College Algebra

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
(x + 1)^2(x - 1) = 0
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For that product to be zero one of those factors must be zero.
If x + 1= 0
x = -1 : multiplicity two because (x+1)^2= (x+1)(x+1)
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If x-1 = 0
x = 1 : multiplicity one
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Cheers,
Stan H.