Friday 10 January 2014

LOGARITHMS B1



If log3(4x + 5)=3; find x

   Solution

log3(4x + 3)=3
 (4x + 3)=33       
                  
 4x + 3=27

4x = 27 – 3

4x =  24

4x =  24   
4        4

X= 6

Hence x = 6

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