kendall92139
kendall92139
09-06-2017
Mathematics
contestada
Which expression is equivalent to?????
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whitesoxlady
whitesoxlady
09-06-2017
Your first choice is the correct answer and I am 100% sure.
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anonymous79
anonymous79
09-06-2017
I will do it step by step
(3xy^-5)^3= 27x^3y^-15
(x^-2y^2)^-4= x^8y-8
So the fraction is (27x^3y^-15)/ x^8 y^8= 27 x^-5y^-7
and the whole thing to power of -2 equals to x^10y^14/ 729
answer is A
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