SOLUTION: Please help :) Evaluate: a) [(81/16)^(1/4) - (1/3)^0]^-2 --I got ?? b)(1/64)^(-2/3) -- I got ?? c) -2x^0 + (-1/3)^-2-- I got 7 d) (9)^(-5/-2) -- I got 1/243

Algebra ->  Exponents -> SOLUTION: Please help :) Evaluate: a) [(81/16)^(1/4) - (1/3)^0]^-2 --I got ?? b)(1/64)^(-2/3) -- I got ?? c) -2x^0 + (-1/3)^-2-- I got 7 d) (9)^(-5/-2) -- I got 1/243      Log On


   

Question 271572: Please help :)
Evaluate:
a) [(81/16)^(1/4) - (1/3)^0]^-2 --I got ??
b)(1/64)^(-2/3) -- I got ??
c) -2x^0 + (-1/3)^-2-- I got 7
d) (9)^(-5/-2) -- I got 1/243
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
a) [(81/16)^(1/4) - (1/3)^0]^-2
=[3/2 - 1]^-2
=[1/2]^-2
=2^2
=4
.
Ed