Question

If, m+n = 7 and m- n = 1
Find the value of nm - m + mxn​

Answer 1

Answer:

nm-m+mn=20

=3×4-4+4×3

=12-4+12

=24-4

=20

Answer 2

Answer:

the value is 20

Explanation:

nm-m+mxn

3x4-4+4x3

12-4+12

24-4

20