Question

find mn, if m+n=8 and m-n=2 (Solve it by using expansion )​

Answer 1

Answer:

$m = 2 \: n = 6$

Step-by-step explanation:

$m + n = 8 \\ m - n = 2 \\ - - - - - \\ 2m = 10$

$m = \frac{10}{2 } \\ m = 2$

$m = 2 \: in \: m + n = 8$

$2 + n = 8 \\ n = 6$

Answer 2

Answer:

m+n=8 add both equation

m-n=2

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2m=10

m=10/2

m=5