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 \(\frac{(-6 ...

Simultaneous equations ... need to solve a quadratic equation so we must set it equal to zero and make sure the coefficient of x 2 is positive. Rearrange the equation to get all terms on 1 side ...