Monday 20 November 2017

LOGARITHMS-3


If log6(2x + 17)=2; find x.

   Solution

Log9(2x + 17)=2

(2x + 17)=62           
                                            
2x + 17=36

2x =36 – 17

2x = 19

2x =   19   
2         2

x = 9.5

Hence x = 9.5

TRY THIS………………


If log11(2u - 7)=2; find u


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