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16 February, 08:08

Which of the following are the factors of 4b2 - 16?

a. (2b + 4) (2b + 4)

b. (2b - 2) (2b + 4)

c. 4 (b - 2) (b + 2)

d. 2 (b - 4) (b + 4)

+4
Answers (1)
  1. 16 February, 10:38
    0
    Difference of 2 perfect squares

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

    (2b) ^2-4^2 = (2b-4) (2b+4)

    (2b-4) = 2 (b-2)

    (2b+4) = 2 (b+2)

    2 (b-2) 2 (b+2)

    4 (b-2) (b+2)

    C is answer
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