SOLUTION: I need help with trying to simplify with a postive exponent. The problems have large curved braces on both sides and a line separating the lower part. (4x) ^-3= y^3 (-a^2

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I need help with trying to simplify with a postive exponent. The problems have large curved braces on both sides and a line separating the lower part. (4x) ^-3= y^3 (-a^2      Log On


   

Question 349123: I need help with trying to simplify with a postive exponent.
The problems have large curved braces on both sides and a line separating the lower part.
(4x) ^-3=
y^3

(-a^2b) ^3
2b^-1



.(3xy-^2) ^2
x^3
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
%284x%29%5E-3%2Fy%5E3+
Multiply NUM and DEN by (4x)^3
= 1%2F%28%284x%29%5E3y%5E3%29
= 1%2F%2864x%5E3y%5E3%29
-----------------------
%28-a%5E2b%29%5E3%2F2b%5E-1
= -a%5E6b%5E3%2F2b%5E-1
Multiply NUM and DEN by b
= -a%5E6b%5E4%2F2
---------------------
(3xy-^2)^2/x^3
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y-^2 isn't right.