Completing the Square.

Quadratic equations and inequalities, variation equations, function notation, systems of equations, etc.
trapperteen
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Completing the Square.

Postby trapperteen » Tue Mar 15, 2011 11:26 pm

So I have a question, if I am correctly doing this.

My teacher wants us to only use COMPLETING THE SQUARE.

Can't use the quadratic.

4x^2-8x-20=24

To make sure I did it correctly, can you guys try it out and see if you got this?

x=4+ or - 4 square root 15?

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maggiemagnet
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Re: Completing the Square.

Postby maggiemagnet » Wed Mar 16, 2011 11:15 am

You can check your answer yourself by using the Quadratic Formula! :thumb:

(I get something else, though. If you get something else when you use the Formula, maybe you could show your steps?)


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