③ 2 log (x-2) + log (x-4)² = 0
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Answer:
x= 3+√2 and x= 3-√2
Step-by-step explanation:
2 log (x-2) + log(x-4)² = 0
=>2 log( x-2) + 2log(x-4)= 0
=> log (x-2) + log ( x-4) = 0
=> log (x-2) ( x-4) = log 1
=> (x-2)(x-4)= 1
=> x²-6x+7= 0
=> x= 3± √8/2= 3±√2
=> x= 3+√2 or x= 3-√2
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