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2 June, 17:09

Is x^ 2 - 16 the difference between two squares? Why?

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Answers (2)
  1. 2 June, 17:23
    0
    x1 = - 4

    x2 = 4

    Step-by-step explanation:

    Set the equation equal to zero

    x2 - 16 = 0

    then

    (x + 4) (x - 4) = 0

    (x+4) = 0 which is equal to - 4

    and

    (x-4) = 0 equals 4
  2. 2 June, 17:29
    0
    yes, x^ 2 - 16 is equal two (x+4) (x-4), which is a differnce between two squares ot the formula, a^2-b = (a+b) (a-b)
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