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Find the discriminant of $3x^2 + \left(3 + \frac 13\right)x + \frac 13$.

 May 4, 2018
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\( 3x^2 + \left(3 + \frac 13\right)x + \frac 13\)

 

We can write this as

3x^2  + (10/3)x + 1/3

 

The discriminant  is

 

(10/3)^2  -  4(3)(1/3)  =

 

100/ 9  - 4  =

 

[ 100 - 36 ] / 9  =

 

64 / 9

 

 

cool cool cool

 May 4, 2018

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