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Posted by on Tuesday, July 26, 2011 at 11:25pm.

compleletly factor the following expression
9y^2-16z^2

  • intermediate algebra - , Wednesday, July 27, 2011 at 5:55am

    It is the difference of two squares.
    Use the standard rule
    a^2 -b^2 = (a-b)(a+b)
    The answer is
    (3y -4z)(3y + 4z)

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