SOLUTION: I am dividing monomials and i have a question on how to do these types of problems. (3/7)^-2 three over 7 raised to the negative second power (4/3)^-4 four over three rai

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I am dividing monomials and i have a question on how to do these types of problems. (3/7)^-2 three over 7 raised to the negative second power (4/3)^-4 four over three rai      Log On


   

Question 123314: I am dividing monomials and i have a question on how to do these types of problems.

(3/7)^-2
three over 7 raised to the negative second power
(4/3)^-4
four over three raised to the negative fourth power
p(q^-2)(r^-3)
p (q raised to the negative second power) ( r raised to the negative third power)
please help me! this is part of a worksheet and my book doesn't give me any examples! thank you so much! =]
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!





Discussion







The rule for exponents that applies to all three of your problems is this:





b%5E%28-n%29=1%2Fb%5En














Solution







1. %283%2F7%29%5E-2=1%2F%283%2F7%29%5E2=%287%2F3%29%5E2=49%2F9





2. %284%2F3%29%5E-4=1%2F%284%2F3%29%5E4=%283%2F4%29%5E4=81%2F256





3. p%28q%5E-2%29%28r%5E-3%29=p%2F%28q%5E2%2Ar%5E3%29