SOLUTION: I have a total of 60 problems. I am stuck on 5 of them, I know that I am close but my tutor says I am still off. Please help me solve the following problems. (x^-2y^4)/(4y^-3

Algebra ->  Exponents -> SOLUTION: I have a total of 60 problems. I am stuck on 5 of them, I know that I am close but my tutor says I am still off. Please help me solve the following problems. (x^-2y^4)/(4y^-3      Log On


   

Question 192472: I have a total of 60 problems. I am stuck on 5 of them, I know that I am close but my tutor says I am still off. Please help me solve the following problems.

(x^-2y^4)/(4y^-3)^2
Found 2 solutions by Earlsdon, RAY100:
Answer by Earlsdon(6294) About Me  (Show Source):
Answer by RAY100(1637) About Me  (Show Source):
You can put this solution on YOUR website!
x^(-2y^4) / (4y(-3))^2
1/x^(2y^4) / (16y^-6)
1/x^(2y^4) / 16/y^6
1/x^(2y^4) * y^6/16
y^6/(16x^(2y^4))
check, let x=2, y=1 arbitrarily
check initial expression
2^(-2)/4^2=1/64
checking final expression
1/(16*2^2)=1/64 ok