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4 April, 09:36

What is a simpler form of the following expressions?

(7p - 8) (7p + 8)

A. 49p^2 + 112p + 64

B. 49p^2 - 112p - 64

C. 49p^2 + 64

D. 49p^2 - 64

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Answers (1)
  1. 4 April, 09:53
    0
    D. 49p² - 64

    Step-by-step explanation:

    (7p - 8) (7p + 8)

    Solving this requires the 'difference of squares' concept which states;

    If (a - b) (a + b)

    Then the solution must be a² - b²

    Considering (7p - 8) (7p + 8) then the answer is;

    (7p) ² - 8² = 49p² - 64
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