Answer:
x = 1 or x= -2
Step-by-step explanation:
You have a parabolic function or you can say quadratic function.
f(x) = x^2 + x - 2 = 0
x^2 + x + (1/4) - (1/4) - 2 = 0
(x + 1/2)^2 - 9/4 = 0
x + 1/2 = root(9/4)
x + 1/2 = 3/2
x = 1 or -2
-4<x<2
If you have any questions about the way I solved it, don't hesitate to ask ÷)
Answer: Choice B