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8 September, 19:11

What number should be added to both sides of the equation to complete the square? x^2+12x=11

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  1. 8 September, 20:08
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    You have to add 25 to both sides.

    the square is x^2+12x+25=11+25

    so: x^2+12x-36=-25

    then: (x-6) ^2=-25
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