Math Problem Statement

5log2 x=-log2 32

Solution

We are given the equation:

5log2x=log2325 \log_2 x = -\log_2 32

Step 1: Apply the properties of logarithms

We know that log232\log_2 32 is the logarithm of 32 with base 2. First, let's simplify log232\log_2 32.

Since 32=2532 = 2^5, we can write:

log232=log2(25)=5\log_2 32 = \log_2 (2^5) = 5

Thus, the equation becomes:

5log2x=55 \log_2 x = -5

Step 2: Isolate log2x\log_2 x

Divide both sides of the equation by 5 to isolate log2x\log_2 x:

log2x=1\log_2 x = -1

Step 3: Solve for xx

Now, we rewrite the logarithmic equation in its exponential form. Recall that log2x=1\log_2 x = -1 means:

x=21x = 2^{-1}

Thus:

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

Final Answer:

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

Would you like a detailed explanation of any step, or do you have any questions?


Here are 5 related questions you might want to explore:

  1. What is the logarithmic form of the equation logbx=y\log_b x = y?
  2. How do you convert between logarithmic and exponential forms?
  3. What are the properties of logarithms, such as product, quotient, and power rules?
  4. How do you solve logarithmic equations with different bases?
  5. What happens when you have logarithms on both sides of the equation?

Tip: When dealing with logarithms, always check for base transformations or simplifications like logbbn=n\log_b b^n = n to make equations easier.

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Math Problem Analysis

Mathematical Concepts

Logarithms
Exponential Functions
Properties of Logarithms

Formulas

log_b b^n = n
Conversion between logarithmic and exponential forms: log_b x = y ⇔ x = b^y

Theorems

Logarithmic Identity
Power Rule of Logarithms

Suitable Grade Level

Grades 9-11