SOLUTION: This has to do with evaluating rational exponents... I am trying to figure out how -9 ^1/2 can = -3 ? I though a negative and negative = a positive. Could you explain please

SOLUTION: This has to do with evaluating rational exponents... I am trying to figure out how -9 ^1/2 can = -3 ? I though a negative and negative = a positive. Could you explain please

Algebra.Com

Question 950727: This has to do with evaluating rational exponents...
I am trying to figure out how -9 ^1/2 can = -3 ?
I though a negative and negative = a positive.
Could you explain please?
Thank you!
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
I think it's like this,

RELATED QUESTIONS
Hi This question has to do with negative exponents. I am trying to rewrite this... (answered by DrBeeee,sachi,MathTherapy)

Hello, I am trying to solve a algebra math problem but not sure what the next step to... (answered by Edwin McCravy)

I am trying to figure out what is wrong with this answer and how do I correct it...... (answered by josgarithmetic)

1/3x=3x-9 i am a grandmother trying to help my grandchild. Although I aced algebra in (answered by ankor@dixie-net.com,MathLover1)

I have a few I am totally stuck on. #1)2/x+3 - 2x+3/x-1 = 6x-5/x^2+2x-3 Okay... (answered by mananth)

I am trying to help my daughter with an algebra review sheet and I can not figure out how (answered by glabow)

This is actually solving a problem that is quadratic in form. I am having lots of... (answered by Earlsdon)

I am trying to figure this problem out and I need some help with it. I am working with... (answered by josgarithmetic,macston,MathTherapy)

I am studing the substitution Method.. and for some reason i can not seem to figure out... (answered by xcentaur)