Math, asked by afrahabdullah160, 16 days ago

what should be added to -7mn +2m2 +3n2 to obtain 5m2 +2mn - 9n2

Answers

Answered by simashanker

3

Answer:

=-7mn+2m2+3m2-5m2+2mn-9n2

=-7mn+2mn+2m2+5m2+3n2-9n2

= -5mn+7m2-6n2

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