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15 August, 23:22

Simplify - 3sqrt2 + 3sqrt8.

A. 9sqrt2

B. 0

C. 3sqrt2

D. - 3sqrt2

+2
Answers (1)
  1. 15 August, 23:35
    0
    3 sqrt2.

    Step-by-step explanation:

    -3sqrt2 + 3sqrt8

    = - 3 sqrt2 + 3 sqrt (4 * 2)

    = - 3 sqrt2 + 3 sqrt4 sqrt2

    = - 3 sqrt2 + 3*2 sqrt2

    = - 3 sqrt 2 + 6 sqrt 2

    = 3 sqrt2.
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