Cornelia M. answered 09/20/14
Tutor
5.0
(1,612)
Math Tutor - Specializing in Middle school through College
I hope I read the problem correctly:
[(5b^0c^-2)^-3][(3b^3a^3)^5]
First, we'll work on simplifying the two [ ] by using the 'power of a power' property of exponents which states (x^a)^b is x^(ab).
[5^-3b^0c^6][3^5b^15a^15]
Second, recall that (x^a)(x^b) = x^(a+b) and that x^0 =1
(5^-3)(3^5)b^15c^6a^15
Third, do the math on the numbers and recall that a negative exponent means you need to drop that term to the denominator.
(243/125)a^15b^15c^6.
So, n=(243/125), r=15, s=15, and t=6.