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30 December, 13:17

What is y=4 (x+1) ^2-4

in standard form

+1
Answers (1)
  1. 30 December, 13:40
    0
    Step-by-step explanation:

    (a + b) ² = a² + 2ab + b²

    (x + 1) ² = x² + 2*x*1 + 1² = x² + 2x + 1

    y = 4 (x+1) ² - 4

    y = 4 (x² + 2x + 1) - 4

    y = 4*x² + 4*2x + 4*1 - 4

    y = 4x² + 8x + 4 - 4

    y = 4x² + 8x
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