Sunday 3 September 2017

LOGARITHMS 2


If log9(2x + 11)=2; find x.

   Solution

Log9(2x + 11)=2

(2x + 11)=92           
                                            
2x + 11=81

2x =81 – 11

2x = 70

2x =   70   
2        2

x = 35

Hence x = 35

TRY THIS………………


If log8(2t - 16)=2; find t

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