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18 October, 16:43

Which trinomial is a perfect-square trinomial?

A. 9y^2-6y+4

B. 2y^2-2y-1

C. 10y^2-20y-4

D. 4y^2-4y+1

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Answers (1)
  1. 18 October, 19:07
    0
    The answer is A. 9y^2-6y+4
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