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31 July, 06:41

Factor this polynomial expression.

x3 - 64

A. (x + 4) (x2 + 4x + 16)

B. (x - 4) (x2 + 4x + 4)

C. (x + 4) (x2 + 4x + 4)

D. (x - 4) (x2 + 4x + 16)

+1
Answers (1)
  1. 31 July, 06:47
    0
    Difference of 2 perfect cubes

    a^3-b^3 = (a-b) (a^2+ab+b^2)

    x^3-4^3 = (x-4) (x^2+4x+4^2)

    (x-4) (x^2+4x+16)

    last one is correct
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