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Mathematics 18 Online
OpenStudy (anonymous):

?

OpenStudy (lgbasallote):

use the discriminant \(b^2 - 4ac\) are you familiar with that?

jimthompson5910 (jim_thompson5910):

what did you get for the discrminant?

jimthompson5910 (jim_thompson5910):

discriminant*

jimthompson5910 (jim_thompson5910):

the discriminant formula is D = b^2 - 4ac

jimthompson5910 (jim_thompson5910):

In your case, a = 1, b = 9 and c = 10

jimthompson5910 (jim_thompson5910):

yes, keep going

jimthompson5910 (jim_thompson5910):

so because you got a nonperfect square positive discriminant, this means that there are 2 irrational solutions so you are 100% correct

jimthompson5910 (jim_thompson5910):

you're welcome

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