Question

2. What are the zeros of the function
f(x)=2x2 - 2x - 4?

Answer 1

-1 or 2

Explanation:

2x2-2x-4

x2-x-2

x2+x-2x-2

x(x+1)-2(x+1)

(x+1)(x-2)

x=-1 or 2