SOLUTION: I need help with this eqation. [(8a^2b^-1)/(b^2)]^3 I worked it out to..(8a^6b^3)/(b^6)= (8a^6)/(b^-3-6)= (8a^6)/(b^-9) I also worked it in this form first---8a^6b^-3, and then

Algebra.Com
Question 399379: I need help with this eqation. [(8a^2b^-1)/(b^2)]^3
I worked it out to..(8a^6b^3)/(b^6)= (8a^6)/(b^-3-6)= (8a^6)/(b^-9)
I also worked it in this form first---8a^6b^-3, and then i just guessed on what to do so i could get b on the bottom.
I know the answer is supposed to be (8a^6)/(b^9) How?

Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!


Hi

Might recommend using the following to come up with the solution:

Rules of Exponents:

I.     

II.  

III. 



[(8a^2b^-1)/(b^2)]^3 = 8^3a^6b^-3 / b^6 = 8^3a^6/(b^3)b^6 = 8^3a^6/b^9 

RELATED QUESTIONS


(8a^6... (answered by Fombitz)

5a-3=8a+6
 (answered by NancyLam)

I need to find the ordered pair

8a+2b=-52... (answered by rfer,MathLover1)

I need help working this problem out.  I have no idea what I am doing.
4a + 2b - 6c = 2
 (answered by jpg7n16)

simplify 8a^2... (answered by Alan3354)

sqrt(8a^9)/b^3 = (8a^9)(b^3)
 
               =  (8a^3)(b^3)

               = 8ab^3
 (answered by Theo,Alan3354)

Hi, I did this problem but some how my Professor wants me to re-check this again. I did... (answered by richwmiller)

Hello I need help solving this problem... (answered by macston)

4(5a+3)+2(8a-6)
 (answered by ReadingBoosters)