Math, asked by mragankgalav88617, 7 months ago

Simplify ( 7m + 3n ) - ( 7m - 3n)? is

A. 42mn

B. 49m2- 9n2
C. 84mn
D. 49m² + 9n2

Answers

Answered by AayusheeMali

0

Answer:

B. 49m^2-9n^2

Step-by-step explanation:

no explanation

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