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Mathematics 9 Online
OpenStudy (anonymous):

Help with a quadratic equation?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

\[x - 2x^ \frac{ 1 }{ 2 } +1 = 0\]

OpenStudy (anonymous):

1st step: square both sides of the equation...

OpenStudy (anonymous):

what do you get??

OpenStudy (anonymous):

x^2 - (2x?) + 1 = 0

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

why the question mark??? what is it supposed to mean?

OpenStudy (anonymous):

are you there??

OpenStudy (anonymous):

So it is supposed to be 2x in the middle then? Sorry I'm trying to get past #23

OpenStudy (anonymous):

yes....so can you carry on from there???

OpenStudy (anonymous):

now that you have a quadratic equation

OpenStudy (anonymous):

Yes I figured out that one, still can't do 23 apparently

OpenStudy (anonymous):

which one is 23??

OpenStudy (anonymous):

#23 \[x^2 + x + 6 = 0\]

OpenStudy (anonymous):

use the quadratic formula to find x...

OpenStudy (anonymous):

but it doesn't factor?

OpenStudy (anonymous):

you could use the formula....do you know the formula?? or you need help applying it to the question??

OpenStudy (anonymous):

I get it to this using the formula: \[X = -1 \sqrt{23}/2\]

OpenStudy (anonymous):

you did not apply it well.......does this link help??? http://www.youtube.com/user/MathMeeting?v=3ayhvAI3IeY

OpenStudy (anonymous):

unfortunately I can't view the video..my school has youtube blocked

OpenStudy (anonymous):

okay.....what about this one??? http://www.purplemath.com/modules/solvquad4.htm

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