Math Problem Statement

8log27×3log4+2log16

Solution

We can solve the expression 8log27×3log4+2log168\log27 \times 3\log4 + 2\log16 by using properties of logarithms and simplifying step by step.

Step 1: Simplify the logarithms using the exponent rule

The logarithmic property alogb=logbaa\log b = \log b^a allows us to move the coefficients inside the logarithm as exponents. Let's apply this property:

8log27=log2788\log 27 = \log 27^8 3log4=log433\log 4 = \log 4^3 2log16=log1622\log 16 = \log 16^2

Now we have:

log278×log43+log162\log 27^8 \times \log 4^3 + \log 16^2

Step 2: Simplify the expressions

Now, compute the powers:

278=(33)8=32427^8 = (3^3)^8 = 3^{24} 43=(22)3=264^3 = (2^2)^3 = 2^6 162=(24)2=2816^2 = (2^4)^2 = 2^8

Substituting these into the expression:

log324×log26+log28\log 3^{24} \times \log 2^6 + \log 2^8

Step 3: Use the logarithmic power rule

Using the logarithmic rule logab=bloga\log a^b = b\log a, we simplify further:

24log3×6log2+8log224\log 3 \times 6\log 2 + 8\log 2

Step 4: Multiply the terms

Now, calculate the multiplication:

(24log3)×(6log2)=144(log3×log2)(24\log 3) \times (6\log 2) = 144 (\log 3 \times \log 2) So, the expression becomes:

144(log3×log2)+8log2144 (\log 3 \times \log 2) + 8\log 2

This is the simplified form.

If you want further steps or specific numerical values for the logs, let me know.


Would you like more details or have any questions?
Here are some related questions to explore:

  1. How do you evaluate logarithms with different bases?
  2. What are some common properties of logarithms?
  3. Can logarithms be negative?
  4. How do logarithms relate to exponential functions?
  5. How can you solve equations involving logarithms?

Tip: Always check for opportunities to apply logarithmic properties early in simplifications, such as the power, product, or quotient rules.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Logarithms
Exponentiation
Logarithmic Properties

Formulas

a log b = log b^a
log a^b = b log a
Product rule of logarithms

Theorems

Logarithmic Power Rule
Logarithmic Product Rule

Suitable Grade Level

Grades 10-12