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25 December, 17:01

What does (2x + y) 2 equal out to

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Answers (2)
  1. 25 December, 17:20
    0
    4 x^2 + 4 x y + y^2

    Step-by-step explanation:

    Expand the following:

    (2 x + y) ^2

    (2 x + y) (2 x + y) = (2 x) (2 x) + (2 x) (y) + (y) (2 x) + (y) (y):

    2*2 x x + 2 x y + 2 y x + y y

    2 x*2 x = 2*2 x^2:

    2*2 x^2 + 2 x y + 2 y x + y y

    2*2 = 4:

    4 x^2 + 2 x y + 2 y x + y y

    y y = y^2:

    4 x^2 + 2 x y + 2 y x + y^2

    x y 2 + y x 2 = 4 x y:

    Answer: 4 x^2 + 4 x y + y^2
  2. 25 December, 17:25
    0
    4x+2y
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