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9 July, 12:31

Which model represent the factors of 4x^2-9

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  1. 9 July, 15:30
    0
    (2x - 3) (2x + 3)

    Step-by-step explanation:

    Given

    4x² - 9

    This is a difference of squares and factors in general as

    a² - b² = (a - b) (a + b)

    4x² = (2x) ² ⇒ a = 2x

    9 = 3² ⇒ b = 3, thus

    4x² - 9 = (2x - 3) (2x + 3) ← in factored form
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