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22 November, 11:12

Solve the quadratic equation by the square root property (2x+5) ^2=49

I'm in Pre-calculus and im not sure how to work a problem like this

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  1. 22 November, 11:22
    0
    Take the square root of both sides

    remember to take the positive and negative root

    2x+5=-7 or

    2x+5=7

    solve each

    2x+5=-7

    subtract 5

    2x=-12

    divide 2

    x=-6

    2x+5=7

    subtract 5

    2x=2

    divid 2

    x=1

    x=-6 or 1
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