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5 July, 16:03

Which of the following expressions is not in its simplest form?

9m + 7n - 6mn + 4

m + 3n + 6mn - 4

9m + 7n - 6mn + 4m

7m - 9n - 6mn + 4

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Answers (1)
  1. 5 July, 18:49
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    The third one, or 9m + 7n - 6mn + 4m because since 9m and 4m are like terms they can still be added together.
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