Question
Solve the exponential equation
2^{3x-2} = 3^{2-x}
Solve the exponential equation
2^{3x-2} = 3^{2-x}
Given
2^{3x-2} = 3^{2-x}
The next steps is to combine the variable on the same base
\dfrac{2^{3x}}{2^2} = \dfrac{3^2}{3^x}
2^{3x}\cdot 3^x = 2^2\cdot 3^2
Apply the power rule for exponet
(2^3)^x\cdot 3^x = 2^2\cdot 3^2
(2^3\cdot 3) ^x = 2^2\cdot 3^2
24^x = 36
Then we get the final answer
x = \dfrac{\log36}{\log24}
Given
2^{3x-2} = 3^{2-x}
Take logarithm on both sides
\log 2^{3x-2} =\log 3^{2-x}
Apply Power Rule of Logarithm
(3x-2)\log2 = (2-x)\log3
3x\log2-2\log2 = 2\log3-x\log3
Combine the like terms
(3\log2+2\log3)x = 2\log2+3\log3
Then
x = \dfrac{2\log2+2\log3}{3\log2+\log3}
Using the power and product rules, x is simplified to
x =\dfrac{\log2^2\cdot 3^2}{\log2^3\cdot 3} =\dfrac{\log36}{\log24}