Mathematics for IGCSE & O level - Algebraic Manipulation (Section 3 - No. 41)
What is the standard form of a quadratic equation?
ax + b = c
ax² + bx + c = 0
a + bx + c = 0
a + b = cx²
説明
The standard form is ax² + bx + c = 0, where a, b, and c are constants and a ≠ 0.