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16 January, 09:18

Divide the following polynomial

(16x^2-25) : (4x+5)

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Answers (1)
  1. 16 January, 12:49
    0
    Differnce of 2 perfect squares, recognize

    (a^2-b^2) = (a-b) (a+b)

    so

    (16x^2-25) = ((4x) ^2 - (5^2)) = (4x-5) (5x+5)

    so

    (16x^2-25) / (4x+5) = (4x-5) (4x+5) / (4x+5) = 4x-5
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