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Quadratic equation: Phương trình bậc hai

/kwäˈdradik əˈkwāZHən/

Tiếng Việt: Phương trình bậc hai (ax^2 + bx + c = 0)

English: An equation where the highest exponent of the variable (usually “x”) is a square (2).
So it will have something like x2, but not x3 etc.
A Quadratic Equation is usually written ax2 + bx + c = 0

Ví dụ/Example:
2x^2 + 5x – 3 = 0
x^2 – 3x + 2 = 0

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