Answers

2014-05-17T13:01:20+05:30
(5/3)^-4×(5/3)^-5=(5/3)^3x
(5/3)^{-4 + (-5)} =(5/3)^3x
(5/3) ^ -9 = (5/3)^ 3x
so,
according to the law of indices
3x = -9
x= -3
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2014-05-17T13:06:59+05:30
By the law of indices answer is -3
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