Friday 22 December 2017

LOGARITHMS 4


If log3(10x + 1)=4; find x.

Solution

log3(10x + 1)=4

 (10x + 1)=34         
                                            
 10x + 1=81

10x = 81 – 1

10x =  80

10x808   
10       10

x = 8

Hence x = 8


TRY THIS…………….



If log3(2x + 31)=4; find x

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