How exactly do you solve this equation by completing the square: 2x² - 4x - 3 = 0

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How exactly do you solve this equation by completing the square: 2x² - 4x - 3 = 0

[From: ] [author: ] [Date: 11-10-07] [Hit: ]

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(4x-3)^2=33

sqrt[(4x-3)^2]="+-"sqrt(33)

4x-3="+-"sqrt(33)

4x=+3"+-"sqrt(33).................Now divide by 4.........creating your first fraction

.......+3"+-"sqrt(33)
X=******************..................… you are finished
...............4

If you did not follow, find the smartest math nerd you know and show this to them
or to your teacher. This method was last taught in the early 1900's.
Over 99% of math teachers and students DO NOT KNOW or have ever heard of this.
PASS IT ON

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2x² - 4x - 3 = 0

2(x^2 - 2x) - 3 = 0

2{ (x - 1)^2 - 1} - 3 = 0

2(x - 1)^2 - 5 = 0

(x-1)^2 = 5/2
x - 1 = +/- sqrt{5 / 2}
x = 1 +/- sqrt{5/2}

Which is the same thing you would get if you used the quadratic formula

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The guy above me is a fuxking dumbass....

12

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