SOLUTION: why is it that when 0 is your number under the square root sign in the quadratic formula, you can only have one answer. How can you tell which of the two answers that you would get

Question 67094: why is it that when 0 is your number under the square root sign in the quadratic formula, you can only have one answer. How can you tell which of the two answers that you would get is the right one?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
You wouldn't get two answers because you would get:
x=[-b+-sqrt0]/2a
x=[-b/2a]
Because the sqrt0 is zero you lost the +sqrt and the -sqrt
which would otherwise give you two answers.
Cheers
Stan H.
RELATED QUESTIONS
I have a question about discriminant and quadratic equations. Can anyone answer the below (answered by stanbon)

Hello, thank you for taking the time to reply to my email. I am currently enrolled in a... (answered by scott8148)

I am not getting this at ALL :( I am a complete math IDIOT, and I really need the steps... (answered by solver91311)

Can you please help me solve the problem? It's solving radical equations. 2x + square... (answered by stanbon)

How do you solve the quadratic equation 3x^2-7x+2=0 using formula? I have worked it out... (answered by solver91311,CharlesG2)

Use Property 1 to simplify the following radical expressions. Assume that all variables... (answered by stanbon)

I have a question for you and I hope that you can help me out with it. The question is; (answered by stanbon)

2.)Why do we have to check the solutions when we solve radical equations? 4.)... (answered by edjones)

Dear Sir/ Madam, I am quite familiar in Quadratic formula but I do not know how to use (answered by lwsshak3)