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How can you tell when a quadratic equation has two identical, rational solutions?

AWhen 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

Verified Answer :

MathGeek289

C, Because Of The Formula.

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apologiabiology

when the radicand equals zero
because if it is zero, there is no plus mius anything, you are left with -b/2a


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