Question

When x=-1 what is value of 2x’+2x
a) 4
b) 2
c)-2
d)-4​

Answer 1

Answer:

2x+2x

2(-1)+2(-1)

-2+(-2)

-2-2

-4

Answer 2

Answer:

2x+2x

(2×-1)+(2×-1)

(-2)+(-2)

-2-2

-4

ans:d)-4