4 Students are discussing about the ‘completing square’ method when solving a quadratic equation. Who is making a correct statement?
1
John: This method will only work when the roots are whole numbers.
2
Nancy: This method will only result in roots which are real.
3
Timothy: There is no need to bring the constant term to the right hand side in the first step.
4
Jane:The coefficient of x2
must be 1 before we can complete the square.