Mathematics
OpenStudy (anonymous):

What is the value of the discriminant of the polynomial below? x2 - 9

OpenStudy (anonymous):

For $$ax^2+bx+c$$, the discriminant is $$b^2-4ac$$. So, you have a=1, b=0, c=-9. What is the discriminant?

OpenStudy (unklerhaukus):

$\Delta=b^2-4ac$$=0^2-4\times1\times-9$

OpenStudy (unklerhaukus):

thirty six

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