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1 March, 10:05

Solve the equation (x+7) ^2=36

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  1. 1 March, 10:06
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    1) Get rid of the square. You have to square root both sides.

    2) Subtract 7 from both sides.

    3) x = - 1
  2. 1 March, 10:11
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    (x+7) ^2=36

    (x+7) (x+7) = 36

    x^2+14x+49=36

    x^2+14x+13=0

    (x+13) (x+1) = 0

    .°. x=-13 / x=-1

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