If P(m+n, 2) = 56 and P(m-n, 2) = 12 the...

If P(m+n, 2) = 56 and P(m-n, 2) = 12 then the values of m and n are

A

a) m = 6 and n = 2

B

b) m = 2 and n = 6

C

c) m = 5 and n = 3

D

c) m = 3 and n = 5

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