Math Problem Statement

55

Simplify the following expression: (3^(-5) * 10^(-5) * 125) / (5^(-7) * 6^(-5))

Solution

The expression in the image is:

35×105×12557×65\frac{3^{-5} \times 10^{-5} \times 125}{5^{-7} \times 6^{-5}}

Let's simplify it step by step.

Step 1: Simplify powers of 125

Since 125=53125 = 5^3, we can rewrite 125125 as 535^3: 35×105×5357×65\frac{3^{-5} \times 10^{-5} \times 5^3}{5^{-7} \times 6^{-5}}

Step 2: Combine like terms

Now we handle the powers of 55 and other terms separately:

  • For 55, we have 535^3 in the numerator and 575^{-7} in the denominator. Using the property aman=amn\frac{a^m}{a^n} = a^{m-n}, we get: 53(7)=53+7=5105^{3 - (-7)} = 5^{3 + 7} = 5^{10}
  • The other terms stay the same for now: 35×105×51065\frac{3^{-5} \times 10^{-5} \times 5^{10}}{6^{-5}}

Step 3: Combine remaining terms

At this point, we have no other like bases, so the final simplified expression is:

35×105×51065=510×6535×1053^{-5} \times 10^{-5} \times \frac{5^{10}}{6^{-5}} = \frac{5^{10} \times 6^5}{3^5 \times 10^5}

This is the fully simplified form of the given expression. Would you like further clarification or details on any step?

Here are 5 related questions:

  1. How do you simplify expressions with negative exponents?
  2. How do you apply the laws of exponents to expressions with multiple terms?
  3. What is the general formula for dividing terms with the same base and different exponents?
  4. How do you handle numbers expressed as powers of prime factors in such equations?
  5. Can you simplify complex fractions further if no common factors are present?

Tip: When working with exponents, always combine terms with the same base first before simplifying the entire expression!

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Math Problem Analysis

Mathematical Concepts

Exponents
Negative Exponents
Simplification of Expressions

Formulas

a^m / a^n = a^(m-n)
(a^m * b^n) / (c^p) = (a^m / c^p) * b^n
125 = 5^3

Theorems

Exponent Laws
Simplification using Prime Factorization

Suitable Grade Level

Grades 9-12