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(7)^-5*(2)^-5×(3)^-5×(3)^3 / (3)^-7*(2)^-5*(7)^-5
(3)^7*(2)^5*((7)^5*(3)^3 / (7)^5*(2)^5*(3)^5
(3)^2*(3)^3=3^5 (as a^m*a^n= a^m+n)
(3)^7*(2)^5*((7)^5*(3)^3 / (7)^5*(2)^5*(3)^5
(3)^2*(3)^3=3^5 (as a^m*a^n= a^m+n)
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