Question

7m + 3mn when m = 8 and n = 14

Answer 1

356

Explanation:

7x8+56

3x8=24

24x14=336

Add everything up

Answer 2

392

Explanation:

m = 8 and n = 14

Substituting the values of m and n in the question, we get :

7m + 3mn

=( 7 x 8) +(3 x 8 x 14)

= 56 + 336

= 392