Mathematics for IGCSE & O level - Equations (Section 5 - No. 13)
When solving a quadratic equation of the form ax² + bx + c = 0, what do you need to identify?
The value of 'a'.
The value of 'b'.
The value of 'c'.
The number of roots.
解释
You must identify a, b, and c to properly use the quadratic formula or other methods.