How can you tell when a quadratic equation has two identical, rational solutions?
Answer
when the radicand is negative
when b in the quadratic formula is greater than the radicand
when the radicand equals zero
when the radicand is not a perfect square

Question

How can you tell when a quadratic equation has two identical, rational solutions?
Answer
		when the radicand is negative
		when b in the quadratic formula is greater than the radicand
		when the radicand equals zero
		when the radicand is not a perfect square

anonymous · Answer

two identical solutions is when
$$\LARGE \Delta=0$$
$$\LARGE \Delta=b^2-4ac$$
I'm not sure If I'm understanding well enough your question.. :(

anonymous · Answer

Your answer is right, question should say discriminant not radicand