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anonymous
 4 years ago
How can you tell when a quadratic equation has two identical, rational solutions?
A) when the radicand is negative
B) when b in the quadratic formula is greater than the radicand
C) when the radicand equals zero
D) when the radicand is not a perfect square
anonymous
 4 years ago
How can you tell when a quadratic equation has two identical, rational solutions? A) when the radicand is negative B) when b in the quadratic formula is greater than the radicand C) when the radicand equals zero D) when the radicand is not a perfect square

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0This is a definitions thing you should memorize: :) http://en.wikipedia.org/wiki/Discriminant#Quadratic

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0FYI, "multiplicity" means it's a repeated root, in this case a doubleroot. Think of it as being cloned or whatever, multiple identical solutions.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0hint there are two identical roots when \[b^2  4ac = 0\] from the quadratic formula does that help?
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