Mathematics for IGCSE & O level - Equations (Section 4 - No. 47)
What is the general form of a quadratic equation?
ax + b = 0
ax² + bx + c = 0
ax³ + bx² + cx + d = 0
a/x + b/x² + c = 0
คำอธิบาย
The general form is ax² + bx + c = 0, where a, b, and c are constants and a ≠ 0.