How To Understand Quadratic Equation

Solving Quadratic Equations

So far, we have only done an example when the value before the x² isequal to 1. It works exactly the same way though whatever the value is.

eg.
3x² - 8x + 4 = 0
(The two numbers are -6 and -2)
3x²-6x-2x+4=0
3x(x-2)-2(x-2)=0
(3x-2)(x-2)=0

3x-2=0
3x=2
x=2/3

x-2=0
x=2

Therefore the two solutions here are 2/3 and 2

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