Mathematics for IGCSE & O level - Equations (Section 1 - No. 2)
When solving a quadratic equation, when would you use the completing the square method?
Only if the equation is easily factorable.
When the equation has no constant term.
To rewrite the equation in a perfect square form.
To determine the leading coefficient
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Completing the square transforms the equation into a form where you can isolate the variable more easily.