SOLUTION: Hi Everyone, my name is Nikki and I need help with simplifying (y^7/z^6)^3. The question is multiple choice, however I am curious to see how it is solved. (a)y^21/z^18 (b)y^21

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Hi Everyone, my name is Nikki and I need help with simplifying (y^7/z^6)^3. The question is multiple choice, however I am curious to see how it is solved. (a)y^21/z^18 (b)y^21      Log On


   



Question 84518: Hi Everyone, my name is Nikki and I need help with simplifying (y^7/z^6)^3. The question is multiple choice, however I am curious to see how it is solved.
(a)y^21/z^18
(b)y^21/z^6
(c)y^10/z^6
(d)y^10/z^9

Answer by tutor_paul(519) About Me  (Show Source):
You can put this solution on YOUR website!
The answer is (a)
You need to apply the power rule of exponents... i.e. when something raised to a power is raised to a power, you multiply the exponents:
%28y%5E7%2Fz%5E6%29%5E3
highlight%28y%5E21%2Fz%5E18%29
Good Luck,
tutor_paul@yahoo.com