Question

All of the following expressions have the same value, when x = -2 and y = 4, except _____.

(-2) 2y
-2 xy
-4 x 2
x 2y

Answer 1

Answer:

x2y

Step-by-step explanation:

multiplication of all other option gives a negative result

Answer 2

Answer:

-16

Step-by-step explanation:

1)

(-2) 2× 4

(-2)8

= -16

2)

-2(-2×4)

-2×-8

-16

3)

-4(-2×2)

-4×(-4)

-16

4)

(-2)2×4

(-2)8

-16