Question

Subtract 

4 lmn-3m³n+7 from 7 lmn-4m³n+2

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Answer 1

Answer:

3lmn-1m^3n^2-4

Step-by-step explanation:

7lmn-4m^3n+2-(4lmn-3m^3 n+7)

=7lmn-4m^3n+3-4lmn+3m^3n-7

=3lmn-1m^3n^2-4