Posted by Ana on Monday, December 27, 2010 at 11:54am.
The discriminant of a quadratic equation is 35. The roots are:
a) unequal rational numbers
b) unequal irrational numbers
c) equal rational numbers
d) imaginary numbers
Please explain.

math  Anonymous, Monday, December 27, 2010 at 12:33pm
I think it's B, unequal irrational numbers. But if the discriminant is 35 then this is not a perfect square.
Do they give you the whole equation such as x^2 + 6x + 5 = 0?

math  Jen, Monday, December 27, 2010 at 12:40pm
It is B.
For a great website on this, see h t t p : / / w w w . r e g e n t s p r e p . o r g / R e g e n t s / m a t h / a l g t r i g / A T E 3 / d i s c r i m i n a n t . h t m (without the spaces, obviously)
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