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15 December, 14:37

Solve the equation using square roots. x2 - 15 = 34

A.+7

B. 7

C. no real number solution

D.+49

+5
Answers (2)
  1. 15 December, 17:25
    0
    x=±7 (A)

    Step-by-step explanation:

    x²-15=34

    x²=34+15

    x²=49

    Taking square root on both sides

    x=±7
  2. 15 December, 17:35
    0
    x=7 and X=-7

    Explanation:

    x^2-15=34

    x^2=49

    x=7 and X=-7
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