Posted by Julie on Monday, January 17, 2011 at 2:54pm.
You've given us a formula, but not given us what we are supposed to be doing with it...
the expression needs to be simplified
I tried
Oh! Okay, well anything to the negative power is equal to the reciprocal to the same positive power. Therefore;
(x^-4*y^2/x^-2*y^-4)^-3
= (x^-2*y^-4/x^-4*y^2)^3
You can then multiply each exponent within the brackets by 3. And simplify your numerator and denominator from there...
Let me know if you still need a hand!
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