Question

7. If I = 7, m = 8,
n = 0, find the value of,
X
(i) 71 + 2m + 4mn
(ii) 21 - 3m - 4n +lmn
​

Answer 1

Answer:

(i) 87

(ii) -3

Just substitute the values, and you'll get the answer

Hope this helps, do mark as brainliest :)

Answer 2

Answer:

1 } 71 + 2(8) + 4(8)(0) = 71+16 =87

2} 21-3(8)-4(0)+(7)(8)(0) =21-24= -3