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Rickey O.

asked • 05/03/17

Use the value of the discriminant to determine the number of roots and type of roots for each equation?

3x2-x-12=0 
 
 
please help I am confused

1 Expert Answer

By:

Kemal G. answered • 05/03/17

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Rickey O.

Are they rational or irrational
 
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05/03/17

Kemal G.

You will need to use the quadratic formula to figure that out. The quadratic formula is
 
x1,2 = (-b ± sqrt(b^2 - 4ac)) / 2a
 
I already indicated the values of a, b and c. Can you find the roots?
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05/03/17

Rickey O.

It's irrational right? I just did the work and I got irrational
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05/03/17

Kemal G.

Yes. What are the values you got for the roots?
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05/03/17

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