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15 May, 03:58

What are the solutions of the equation x2 + 4x+4=25?

A. x=3 or x=-7

B. x=-3 or x = - 7

C. x=1 or x=9

D. x=1 or x=-9

+3
Answers (2)
  1. 15 May, 04:04
    0
    The answer is : A. x=3 or x=-7
  2. 15 May, 04:23
    0
    Minus 25 oth sides

    x^2+4x-21

    facotr

    what 2 numbes multiply to - 21 and add to 4?

    -3 and 7

    (x-3) (x+7) = 0

    set to zero

    x-3=0

    x=3

    x+7=0

    x=-7

    x=3 or - 7

    A is answer
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