Solve for x 2 log base 3 of x=3 log base 3 of 5
Problem
Solution
Apply the power property of logarithms, which states
n*(log_b)(a)=(log_b)(an) to both sides of the equation.
Simplify the exponent on the right side of the equation by calculating the value of
5
Use the one-to-one property of logarithms, which states if
(log_b)(M)=(log_b)(N) thenM=N
Solve for x by taking the square root of both sides.
Simplify the radical by factoring out the largest perfect square.
Check for extraneous solutions by ensuring the argument of the original logarithm,
x is greater than zero. Since5√(,5)>0 the solution is valid. Note that the negative rootx=−5√(,5) is excluded because the domain of(log_3)(x) isx>0
Final Answer
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