Answer:
x = - 3, x = 1
Step-by-step explanation:
Given
n(x) = [tex]\frac{1}{2}[/tex] (x - 1)(x + 3)
To obtain the zeros, equate n(x) to zero, that is
[tex]\frac{1}{2}[/tex] (x - 1)(x + 3) = 0
Equate each factor to zero and solve for x
x + 3 = 0 ⇒ x = - 3
x - 1 = 0 ⇒ x = 1
