Math Problem Statement

³log27 + ³log6 - ³log2

Solution

We are given the expression:

log327+log36log32\log_3{27} + \log_3{6} - \log_3{2}

Let's simplify this step by step.

Step 1: Simplify log327\log_3{27}

Since 27=3327 = 3^3, we can simplify:

log327=3\log_3{27} = 3

Step 2: Apply the logarithmic property for addition

We can combine the logarithms log36\log_3{6} and log32-\log_3{2} using the logarithmic property:

logbxlogby=logb(xy)\log_b{x} - \log_b{y} = \log_b{\left(\frac{x}{y}\right)}

So,

log36log32=log3(62)=log33\log_3{6} - \log_3{2} = \log_3{\left(\frac{6}{2}\right)} = \log_3{3}

Step 3: Simplify log33\log_3{3}

Since log33=1\log_3{3} = 1, we can now simplify the expression:

log36log32=1\log_3{6} - \log_3{2} = 1

Step 4: Final calculation

Now we add the two simplified terms:

log327+(log36log32)=3+1=4\log_3{27} + (\log_3{6} - \log_3{2}) = 3 + 1 = 4

Thus, the simplified value of the expression is:

4\boxed{4}

Would you like more details or have any questions?

Here are 5 related questions you might find helpful:

  1. How do logarithmic addition and subtraction rules work in general?
  2. What is the change of base formula for logarithms?
  3. How do you solve equations involving logarithms and exponents?
  4. Can you express logbax\log_b{a^x} in simpler terms?
  5. How do logarithms relate to exponential growth and decay?

Tip: When simplifying logarithmic

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Math Problem Analysis

Mathematical Concepts

Logarithms
Logarithmic Properties
Simplification of Expressions

Formulas

log_b{x} - log_b{y} = log_b{(x/y)}
log_b{x^a} = a * log_b{x}

Theorems

Logarithmic Identity: log_b{b} = 1

Suitable Grade Level

Grades 10-12