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17 February, 05:27

If a + b = y, what is a^2 + 2ab + b^2?

A.

Y

B.

2y

C.

Y^2

D.

2y^2

E.

4y^2

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Answers (1)
  1. 17 February, 06:25
    0
    (a+b) ^2 = a^2+2ab+b^2

    (a+b) = y

    (a+b) ^2=y^2

    answer is C
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