The quadratic formula for a quadratic equation in the form of \(ax^2 + bx + c = 0\) is \(x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\). The first solution is \(x = \frac ...

So the solutions of the equation are \({x}\) = -2 and \({x}\) = -7. Where the graph crosses the line \({y}\) = 0 we will have our solutions. As the graph is quadratic we can see that the line ...