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27 August, 04:07

Factorize completely:

4x² - y² + 4y - 4

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Answers (2)
  1. 27 August, 04:45
    0
    Step-by-step explanation:

    the answer is (2x-y+2) (2x+y-2)
  2. 27 August, 07:02
    0
    (2x-y+2) (2x+y-2)

    Step-by-step explanation:

    4x² - y² + 4y - 4=

    = (2x) ² - (y²-4y+4)

    = (2x) ² - (y-2) ²

    = [2x - (y-2) ][2x + (y-2) ]

    = (2x-y+2) (2x+y-2)

    a²-b² = (a-b) (a+b)
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