Question 349123
{{{(4x)^-3/y^3 }}}
Multiply NUM and DEN by (4x)^3
= {{{1/((4x)^3y^3)}}}
= {{{1/(64x^3y^3)}}}
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{{{(-a^2b)^3/2b^-1}}}
= {{{-a^6b^3/2b^-1}}}
Multiply NUM and DEN by b
= {{{-a^6b^4/2}}}
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(3xy-^2)^2/x^3
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y-^2 isn't right.