The area, in square units, of a rectangle is represented by the expression (x-4) (x+4) Which expression represents an equivalent area, in square units? x^2-4

(x-8) (x+8)

(x-16) (x+16)

x^2-16

x^2-16

Step-by-step explanation:

Foil Method

(x*x+4x-4x-16)

x^2-16

u dumb boi

step-by-step explanation:

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i