Question

Solve each equation by graphing. If integral roots cannot be found, estimate the roots by stating the consecutive integers between which the roots lie. x^2+x-2=0

Answer 1

x = 1 or x= -2

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