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4 September, 16:07

Simplify (3n - 2m) 2 = ?

A. 9n2 - 12mn - 4m2

B. 9n2 - 12mn + 4m2

C. 9n2 + 12mn + 4m2

D. 6n2 - 12mn - 4m2

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Answers (1)
  1. 4 September, 17:41
    0
    If you mean (3n-2m) ^2 then the answer is

    9n^2-12mn+4m^2

    So B
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