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Grade: 12th pass
        
5^x+5^(x+1)=125
wat is x value in the given question
 
one year ago

Answers : (3)

utpal raj
244 Points
							
5^x+5^(x+1)=125
take log on both side 
xlog5+(x+1)log5=log125
(2x+1)log5=log125
2x+1=log125/log5
2x+1=3
so 2x=2
so x=1
should be the ans
hope you understand the procejure.
 
one year ago
g v subba reddy
56 Points
							
taking log  base5 on both sides we will get equation as
log5x +log5x+1 =log125
now the equation can be written as xlog5+xlogx+1=3log5
by cancelling log on both sides we will get x+x+1=3
2x+1=3
2x=2
x=1
one year ago
Abhishek kumar
22 Points
							Sol:- 5^x+5^(x+1)=125  5^x+x+1=125.   (a^m×a^n=a^m+n)5^2x+1=5^3 .       (125= 5×5×5=5^3) 2x+1=3. ( By dividing 5  in both term)2x=3-12x=2.   (By dividing 2 in both term)So, the value of x = 1
						
one year ago
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