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

Question

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

anonymous · Answer

when the radicand equals zero

callisto · Answer

radicand =0
if radicand is delta lol

anonymous · Answer

wait so whats the answer? when the radical equals zero?

anonymous · Answer

In ax^2+bx+c=0

when b^2-4ac=0

So it was the radicand equals zero :D

anonymous · Answer

According to my notes: when the radicand equals zero!

anonymous · Answer

the square root of zero is plus or minus zero,this leads to two solutions that don't differ

anonymous · Answer

@Brad1996 does mine helps? if not i can explain another?

anonymous · Answer

so B?

anonymous · Answer

yes @Brad1996

anonymous · Answer

alright thanks guys