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To solve this problem, we'll apply the properties of logarithms and inequality manipulation.
Initially, consider the given inequality:
Using the quotient rule of logarithms, combine the logs:
The inequality can be rewritten by converting the logarithm to an exponential form:
Since , substitute to get:
To remove the fraction, multiply both sides by , assuming to maintain the inequality direction:
Divide by 256 to isolate :
Subtract 3 from both sides to solve for :
Given the problem's constraints about the positivity of the logarithm's argument, ensure . Our derived inequality starts from , which satisfies this, thus correctly addressing the domain assumptions.
In conclusion, the solution to the inequality is:
\( \log_{10}3+\log_{10}4= \)
The quotient rule lets you combine into . This makes it much easier to convert to exponential form in the next step!
Remember that means . So becomes .
If x = -3, then x + 3 = 0, and is undefined! Logarithms only work with positive numbers, so we need x + 3 > 0, meaning x > -3.
No! Since we established that x + 3 > 0 (from the domain), we're multiplying by a positive number. You only flip inequalities when multiplying or dividing by negative numbers.
Calculate . This is approximately -2.988, which is indeed greater than -3, so our domain is satisfied!
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