List of Internet slang phrases help: The discriminant of the quadratic polynomial -10x*x-7x-40 is . - Help.com

lynn1319
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Omaha, NE, US

The discriminant of the quadratic polynomial -10x*x-7x-40 is .

. . what? What’s a discriminant?

This open post was written 2 years ago | V/U/S: 337, 2, 2 | Edit Post | Leave a reply | Report Post


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cady offline Verified User (3 years, 4 months) Long Term User Shouts: 1 #
San Francisco, CA, US | 2 years ago (4 hours, 12 minutes after post)

The short answer:

Discriminate = D

D = b^2 - 4ac

(Note … b^2 means “b squared”)

So, in your problem:

a = (-10)
b = (-7)
c = (-40)

so….

D = b^2 - 4ac
D = (-7)^2 - [(4)(-10)(-40)]

The long answer:

Now, you want the DEFINITION of a discriminate?! Haha. Let someone else explain it to you, not me.

Some explanations for ya:

http://en.wikipedia.org/wiki/Discrimi…
http://en.allexperts.com/q/Basic-Math…
http://mathforum.org/library/drmath/v…

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lynn1319 offline Verified User (2 years, 1 month) Long Term User Shouts: 0 #
Omaha, NE, US | 2 years ago (1 week, 3 days after post)

Thank you sooooooo much!

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