Find the value of x that satisfies the equation Log(2x−11)−log2=log3−log x
Mathematics
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Answer
6
Step-by-step solution
7 stepsUse the logarithm property to combine terms on both sides of the equation.
Since the logarithms on both sides are equal, their arguments must be equal.
Cross-multiply to eliminate the denominators.
Rearrange the equation into a quadratic form .
Solve the quadratic equation using the quadratic formula .
Here, , , and .
Calculate the two possible values for x.
Check for extraneous solutions.
The argument of a logarithm must be positive.
For :
This solution is valid.For :
The argument of the logarithm cannot be negative. This solution is extraneous.The only valid solution is .
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