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OpenStudy (anonymous):
Simplify the expression (x^3y^4 over x^-3y^7)^-3 A. y^5/x^7 B. x^3/y C. y^6/x^10 D. x^-6/y^-5 please help
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OpenStudy (anonymous):
Are you sure the choices are right because this is what I did (x^3 y^4/x^-3 y^7)^-3 (x^6/y^3)^-3 (y^3/x^6)^3 y^9/x^18
OpenStudy (anonymous):
they are right
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