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Mathematics 13 Online
OpenStudy (anonymous):

discriminat -x^2-a=6x

OpenStudy (e.mccormick):

discriminat? Eh? Did you mean discriminant?

OpenStudy (anonymous):

yes

OpenStudy (e.mccormick):

Do you know what that is in the quadratic formula?

OpenStudy (anonymous):

In a quadratic equation, the discriminant helps tell you the number of real solutions to a quadratic equation

OpenStudy (e.mccormick):

Yes, but do you know what part of the equation it is? It looks like they are asking for what it would be if you set that up as a quadratic.

OpenStudy (anonymous):

oh no then

OpenStudy (e.mccormick):

It is the part under the radical.

OpenStudy (e.mccormick):

Now, they made this one a but tricky. They used an a. Do not confuse this with the a in the quadratic formula. They are seperate uses of a!

OpenStudy (e.mccormick):

So, if you put this in \(ax^2+bx+c=0\) form, what would it become?

OpenStudy (anonymous):

6x-x^2=a

OpenStudy (e.mccormick):

The a is actually part of it. I would move the \(-x^2-a\) part over, just to get the positive signs there.

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