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18 September, 11:50

Select the TWO binomials that will factor the expression: 9x^2-4

3x - 4

3x - 2

3x + 2

2x - 3

+2
Answers (1)
  1. 18 September, 12:10
    0
    Step-by-step explanation:

    a² - b² = (a + b) (a - b)

    9x² - 4 = 3²x² - 2²

    = (3x) ² - 2² {a = 3x; b = 2}

    = (3x + 2) (3x - 2)
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