# Quadratic Equations

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- Created by: Joel Ho
- Created on: 19-11-10 08:37

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Quadratic equations take the following form:ax² + bx + c = 0

Where x is the only variable and a, b and c are just numbers(Can be zero!).

If a=0: bx + c = 0

If b=0: ax² + c = 0

If c=0: ax² + bx = 0

Normally you have to find out the value of x.

E.g. x² - 121 = 0

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