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18 November, 08:07

Factor the expression

9x^2-16

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Answers (1)
  1. 18 November, 11:23
    0
    (3x-4) (3x+4)

    Step-by-step explanation:

    9x^2-16

    9x^2 is a product of squares = (3x) ^2

    16 is a product of squares = 4^2

    so

    9x^2-16 is the difference of squares

    (a^2 - b^2) = (a-b) (a+b) where a = 3x and b = 4

    9x^2-16 = (3x-4) (3x+4)
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