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10 May, 17:10

X^2-8x+16=1

What is this answer

+5
Answers (2)
  1. 10 May, 17:50
    0
    Because it's a square root to the X, there's going to be 2 answers. After solving it I got x = 3,5
  2. 10 May, 18:18
    0
    Mmiinus 1 from both sides to get it equal to zero

    x^2-8x+15=0

    factor

    what 2 numbers multiply to get 15 and add to get - 8

    -5 and - 3

    (x-5) (x-3) = 0

    set each to zero

    x-5=0

    x=5

    x-3=0

    x=3

    x=3 and 5

    x=4 is the answer
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