1.) Which of the following is equal to (x+2)(x-4) ?> a. 7+2x2 +16x+32
b. r +2x2 -16x-32
-6° +32
d. x4 - 4x'-12x+32x+64
None of the above
C.

None of the above.

Step-by-step explanation:

(x + 2)(x - 4)

= x(x - 4) + 2(x - 4)

= x^2 - 4x + 2x - 8

= x^2 - 2x - 8.

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)