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26 April, 00:03

Which model represents the factors of 4x2 - 9?

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  1. 26 April, 01:51
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    So which one is it 1) 2) 3) or 4) ?
  2. 26 April, 03:29
    0
    The factors of 4 x² - 9:

    4 x² - 9 = (2 x - 3) · (2 x + 3)

    We have to use the formula for the difference of squares:

    a² - b² = (a - b) · (a + b)
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