Solve the logarithmic equation. log_9 x+log_9(8x-1)=1

4enevi

4enevi

Answered question

2022-10-27

Solve the logarithmic equation.
log 9 x + log 9 ( 8 x 1 ) = 1

Answer & Explanation

Plutbantonavv

Plutbantonavv

Beginner2022-10-28Added 15 answers

Answer:
log 9 x + log 9 ( 8 x 1 ) = 1 log 9 ( 8 x 1 ) = 1 x ( 8 x 1 ) = 9 1 8 x 2 x 9 = 0 x = 1 ± 1 + 288 16 = 1 ± 17 16 = 1 , 1 + 17 16 = 1 , 9 8
x=-1 not possible
x = 9 8

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