Find mn if m+n=8 and m-n=2 – InterviewSolution

1.

Find mn if m+n=8 and m-n=2

Answer»

Answer:

15

Step-by-step explanation:

ADDING the two EQUATIONS together you GET 2M = 10. That means m = 5. Substitute m into one of the equations and you get N = 3. Therefore my = 15

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