Answer:
Step-by-step explanation:
a) Sum = - 6
Product = - 16
Factors = (-8) ; (2 {-8 + 2 = -6 ; (-8) * 2 = -16}
y = x² - 6x - 16
= x² + 2x - 8x - 16
= x(x + 2) - 8(x + 2)
= (x +2)(x -8)
b) y = 0
(x +2 )(x -8) = 0
x + 2 = 0 ; x - 8 = 0
x = -2 ; x = 8
(-2) ; 8 are the zeros.
