
Log6(x-2)+log6(x-1)=1 очеееень срочно


Ответы на вопрос




log6((x-2)*(x-1))=1
log6(x^2-x-2x+2)=1
log6(x^2-3x+2)=1
x^2-3x+2=6^1
x^2-3x+2-6=0
x^2-3x-4=0
Находим D: x1=4 и x2= -1
x2= -1 не подходит по условию
Ответ: x=4



Solving the Equation Logarithmic Equation
To solve the equation Log6(x-2) + log6(x-1) = 1:
We can use the properties of logarithms to simplify the equation and solve for x.
First, we can combine the logarithms using the product rule of logarithms, which states that log_b(M) + log_b(N) = log_b(M * N).
So, the given equation can be rewritten as: log6((x-2)(x-1)) = 1
Next, we can rewrite the equation in exponential form. The logarithmic equation log_b(M) = N is equivalent to b^N = M.
Therefore, the equation becomes: 6^1 = (x-2)(x-1)
Solving for x: 6 = (x-2)(x-1) 6 = x^2 - 3x + 2
This is a quadratic equation, and we can solve for x by setting the equation equal to zero and factoring or using the quadratic formula.
Let's solve for x using the quadratic formula: x = (-b ± √(b^2 - 4ac)) / (2a)
Where a = 1, b = -3, and c = 2.
Plugging these values into the quadratic formula: x = (-(-3) ± √((-3)^2 - 4(1)(2))) / (2*1) x = (3 ± √(9 - 8)) / 2 x = (3 ± √1) / 2 x = (3 ± 1) / 2
So, we have two possible solutions for x: x = (3 + 1) / 2 = 4 / 2 = 2 x = (3 - 1) / 2 = 2 / 2 = 1
Therefore, the solutions to the equation Log6(x-2) + log6(x-1) = 1 are x = 2 and x = 1.
This is the detailed solution to the given logarithmic equation. If you have any further questions or need additional assistance, feel free to ask!


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