Math Problem Statement

Solve the following logarithmic equation: 6 log_2 x = - log_2 64

Solution

To solve the equation:

6log2x=log2646 \log_2 x = -\log_2 64

Step 1: Simplify the Right Side

The term log264\log_2 64 can be simplified. Since 64=2664 = 2^6, we have:

log264=log2(26)=6\log_2 64 = \log_2 (2^6) = 6

Thus, the equation becomes:

6log2x=66 \log_2 x = -6

Step 2: Divide Both Sides by 6

To isolate log2x\log_2 x, divide both sides by 6:

log2x=1\log_2 x = -1

Step 3: Rewrite in Exponential Form

Now, rewrite the logarithmic equation log2x=1\log_2 x = -1 in exponential form:

x=21x = 2^{-1}

Step 4: Simplify

Calculating 212^{-1} gives:

x=12x = \frac{1}{2}

Solution

The solution set is:

{12}\{ \frac{1}{2} \}

Final Answer

The correct choice is:

  • A. The solution set is {12}\{ \frac{1}{2} \}.

Would you like more details on the solution or have any questions?


  1. What are the properties of logarithms that can simplify similar equations?
  2. How can you convert between logarithmic and exponential forms?
  3. What would the solution be if the base of the logarithm was different?
  4. How do you handle equations involving multiple logarithmic terms?
  5. What are other common types of logarithmic equations?

Tip: Always check if a logarithmic argument results in a negative value, as logarithms are undefined for negative numbers in real numbers.

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Math Problem Analysis

Mathematical Concepts

Logarithmic Equations
Properties of Logarithms
Exponential Equations

Formulas

log_b (a^n) = n * log_b a
log_b a = c ⇔ b^c = a

Theorems

Logarithmic-Exponential Conversion

Suitable Grade Level

Grades 10-12