1. x^{2/3}=4 //Really dont know T_T 2. 5^{x}=square root of 5 ~ 5^{x}= 5 * 5^{1/2 }~ 5^{x} = 5^{3/2} //How did 3/2 happen? - .- I dont know how to solve the ff fractional fractional exponents. please explain to me step by step. T_T
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Originally Posted by KerkLu 1. x^{2/3}=4 //Really dont know T_T 2. 5^{x}=square root of 5 ~ 5^{x}= 5 * 5^{1/2 }~ 5^{x} = 5^{3/2} //How did 3/2 happen? - .- I dont know how to solve the ff fractional fractional exponents. please explain to me step by step. T_T First of all, in question 2, you can not turn into . Are you sure you wrote down the question properly?
ohh sorry, my mistake xD That was still 5 square root of 5. Thanks
It's because , so .
I forgot about that , tnx but how about no.1?
x^2/3 = 4 Both the sides should be raised to the power os 3/2 Thus we have [x^2/3]^3/2 = 4^3/2 that gives x = [4^1/2]^3=2^3= 8
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