Match the equation on the left to its equivalent on the right.

Question

1. y = x^2 - 10x + 16
2. y = x^2 + 2x - 8
3. y = (x + 3)^2 - 8
4. y = (x + 9) (x + 1)

a. y = x^2 + 6x + 1
b. y = x^2 + 10x + 9
c. y = (x + 1)^2 - 9
d. y = (x - 2) (x - 8)

Answer 1

1. b. y = x^2 + 10x + 9
2. a. y = x^2 + 6x + 1
3. c. y = (x + 1)^2 - 9
4. d. y = (x - 2) (x - 8)

Answer 2

I thought y= x^2-10x+16 is equivalent to y=(x-2)(x-8)