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11 September, 18:09

Factor this polynomial expression. x^2-16

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  1. 11 September, 18:30
    0
    Hi,

    We know that:

    a² - - b² = (a - - b) (a + b).

    With a = x, and b = 4, we have:

    x² - - 16 = x² - - 4² = (x - - 4) (x + 4).

    As simple as that. Have you understood?

    Green eyes.
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