Question

evaluate 8(m+n)- mn for m=2 and n=5.​

Answer 1

HI, HERE IS YOUR ANSWER:

m=2 and n=5.

8(2+5)- 2*4

8*7-8

56-8

48

HOPE IT HELPS YOU!!

Answer 2

Answer:

$let \: m = x \: and \: n = y \\ x = 2 \: \: y = 5 \\ = 8(x + y) - xy \\ = 8(2 + 5) - (2 \times 5) \\ = 8(7) - 10 \\ = 56 - 10 \\ = 46$