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31 October, 05:26

What polynomial identity should be used to prove that 117 = 125 - 8?

Difference of Cubes

Difference of Squares

Square of Binomial

Sum of Cubes

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Answers (1)
  1. 31 October, 05:57
    0
    125 - 8 = 5³ - 2³ =

    = (5 - 2) · (5² + 5 · 2 + 2²) =

    = 3 · (25 + 10 + 4) = 3 · 39 = 117

    Answer:

    A) Difference of Cubes
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