Tuesday, 13 March 2018

LOGARITHMS 3


If log9(4x + 17)=2; find x.

   Solution

Log9(4x + 17)=2

(4x + 17)=92           
                                            
4x + 17=81

4x =81 – 17

4x = 64

4x =   64   
4        4

x = 16

Hence x = 16

TRY THIS………………


If log7(2t - 25)=2; find t

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