Question

(iii) 7a2 + 7a - 20
if(a= -2)​

Answer 1

Answer:

7×-2×2+7×-2-20

-14×2+(-14-20)

-28+(-34)

-28-34

-62. ans

Answer 2

Answer:

7(-2)2+7(-2)-20

= -14(2) -14-20

= -18

Step-by-step explanation:

hope its helpful

but i think ur question is incomplete