Algebra 1

How do you find the zeros?

g(x) = x3 – x2 – 4x + 4

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asked by Rae
  1. Use this notation to indicate exponents:

    x^3 - x^2 - 4x + 4 = 0
    grouping will work

    x^2(x - 1) - 4(x - 1) = 0
    (x-1)(x^2 - 4) = 0
    (x-1)(x+2)(x-2) = 0
    so
    x = 1 , -2 , +2

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    posted by Reiny

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