Question 550751
Would someone please take the time out to review the answers I have come up with to these problems and tell me if they are correct or in correct.
Thanks!! 
Rational Exponents
2. (3Xy^-2)/(x^3)^2 = 9/x^4y^4
The numerator is not clear.
Is it {{{3xy^(-2)}}} ?
4.(-a^2b)/(2b^-1)^3 = -a^6b^6/8
= {{{-a^2b/(8b^(-3))}}}
= {{{-a^2b^4/8}}}
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6. (4X)/(y3)^-3 = y9/64x^3
= {{{4x/y^(-9)}}}
= {{{4xy^9}}}
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34. 16 ^3/4 = 8 That's correct.
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46. 11^(1/3).11^3= 
If the dot means multiply,
= {{{11^(10/3)}}} or,
= {{{11^3*root(3,11)}}}
= {{{1331*root(3,11)}}}
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Use the asterisk for multiply.