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20 June, 08:16

W^2-4w + ? what lake the expression a perfect square

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Answers (2)
  1. 20 June, 10:42
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    To complete the squre you take the B value (Ax^2+Bx+c) divide by two then square it so it would be 4
  2. 20 June, 11:36
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    (w-2) (w-2) - 2w*w=-2w^2 w*-2=-2w = - 4w w^2-4w+4
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