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8 March, 09:00

Which of the following equations is an equation formed when completing the square on y 2 - 12y = - 27?

(y - 6) 2 = - 27

(y - 6) 2 = 9

(y + 6) 2 = 9

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Answers (1)
  1. 8 March, 09:28
    0
    Hello,

    You should write y²-12y=-27 or y^2-12y=-27

    y²-12y=-27

    ==>y²-2*6y+6²=-27+36

    ==> (y-6) ²=9

    (second answer)
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