Question

Given m=-2 andn=6, evaluate :

(ii) 2m2 +8n iv) 3m3+ 2mn +n

(i) mtn

Simplify the expressions and find their values ifx = 2, a =-1, b=-3:

i) 4a²-b²+6a²-7b²​

Answer 1

Step-by-step explanation:

$given \\ 2 {m}^{2} = - 8 \: and \: 8n = 48 \: \\ then \: ( - 8) + 48 = 40$