Math, asked by hardik123425, 1 month ago

15m²n-17mn+8mn², 13m²n-15mn-9mn², 12m²n+21mn-14mn²

Answers

Answered by dk6191617
2

Step-by-step explanation:

15m²n- 17mn + 8mn² + 13m²n - 15mn - 9mn²+ 12m²n + 21mn - 14mn²

15m²n + 13m²n + 12m²n - 17mn - 15mn + 21mn +8mn² -9mn²-14mn²

40m²n - 11mn - 15mn²

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