An alternative method to solve a quadratic equation is to complete ... solutions in decimal form, continue on with a calculator, adding and subtracting the square root to find the two solutions.

If a quadratic equation can be factorised, the factors can be used to find the roots of the equation. The equation factorises to give \((x + 3) (x - 2) = 0 \) so the solutions to the equation \(x ...