Question

7m + 3mn
when m = 3 and n = -4

Answer 1

-15

Explanation:

= 7(3) + 3(3)(-4)

= 21 + 3(3×-4)

= 21 + 3(-12)

= 21 + -36

= 21-36

= -15

Answer 2

-15

Explanation:

When m=3 and n=-4

So, put the values

7(3)+3(3)(-4)

-> -15