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15 May, 22:40

X^2 - 12x + 11 = 0 Factor and solve

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Answers (2)
  1. 15 May, 23:53
    0
    X^2 - 12x + 11 = 0 (-11*-1=11 and - 11+-1=-12)

    (x-11) (x-1) = 0

    x-11=0 x-1=0

    x=11 or 1 < - - - answer
  2. 16 May, 00:39
    0
    You need to find the two numbers that add to b (-12) and multiply to a*c (1*11)

    -11 (-1) = 11 and - 11 + (-1) = - 12, so you have:

    (x-11) (x-1) = 0

    Solve for each:

    x-11=0 | x-1=0

    x=11 | x=1

    The solutions are 1 and 11.
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