Mathematics for IGCSE & O level - Equations (Section 1 - No. 16)
What does it mean when the coefficient of x² is '1'?
The quadratic equation has no solutions.
The quadratic equation can be solved by completing the square.
The equation can be solved easily.
The quadratic equation can be solved with the quadratic formula only.
Explanation
When the coefficient of x² is '1', the equation can often be solved more easily through factorization or completing the square.
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