Question

# Quadratic equation solve x2+2x-8=0

Quadratic function and equation
Quadratic equation solve $$x2+2x-8=0$$
To solve this problem, use the quadratic formula. This will be $$a = 1, b = 2$$ and $$c = -8$$.
The formula substituted is $$\frac{-2 +- (the\ square\ root\ of\ 4+32)}{2}$$
That is $$\frac{-2 +- 6}{2}$$. Simplify that to get $$x = 2$$ and $$x = -4$$.