what is answer of question 3
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Step-by-step explanation:
6m²- mn +9 - (-3m² +7mn)
= 6m²- mn +9 + 3m² -7mn
= 9m² -8mn +9
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Answered by
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answer : 9m² - 8mn + 9
Step-by-step explanation:
6m² - mn + 9 - ( -3m² + 7mn)
→ 6m² -mn + 9 + 3m² - 7mn
→ 6m²+ 3m²-mn - 7mn + 9
→ 9m² - 8mn + 9
I hope it helps you
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