VannM740180 VannM740180
  • 25-10-2022
  • Mathematics
contestada

8. Solve the following equation: log4 (2x - 3) = log4 (5x + 1)

8 Solve the following equation log4 2x 3 log4 5x 1 class=

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ZariaC778468 ZariaC778468
  • 25-10-2022

Given the logarithm equation as shown below

[tex]\log _4(2x-3)=\log _4(5x+1)[/tex]

To solve the equation above, we will divide both sides by the log to the base of 4 and solve the resulting algebraic equation

[tex]\frac{\log_4(2x-3)}{\log_4}=\frac{\log _4(5x+1)}{\log _4}[/tex][tex]\begin{gathered} 2x-3=5x+1 \\ \text{Collect like terms} \\ 2x-5x=1+3 \\ -3x=4 \end{gathered}[/tex]

Divide both sides by -3

[tex]\begin{gathered} \frac{-3x}{-3}=\frac{4}{-3} \\ x=-\frac{4}{3} \end{gathered}[/tex]

Hence, the solution of the equation is x= -4/3

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