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13-05-2017
Mathematics

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What is the discriminant for x^2-x+2=0

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egoodrich1337 egoodrich1337

13-05-2017

First you need to plug in to the formula b^2 - 4ac (part of the quadratic formula).

In this trinomial, a = 1, b = -1, and c = 2.

(-1)^2 - 4(1)(2)

1 - 8

The discriminant of this polynomial is -7. This tells us that it will have complex roots.

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