$((5^5)^5 - 2 Cdot (5^4)^6) Div 5^ 23 $

2 min read Jun 16, 2024
$((5^5)^5 - 2 Cdot (5^4)^6) Div 5^ 23 $

Simplifying the Expression: $((5^5)^5 - 2 \cdot (5^4)^6) \div 5^{23}$

This expression might seem daunting at first, but it can be simplified significantly using the properties of exponents. Let's break it down step by step:

Understanding the Properties of Exponents

  • Power of a Power: $(a^m)^n = a^{m \cdot n}$
  • Multiplication of Powers: $a^m \cdot a^n = a^{m+n}$
  • Division of Powers: $a^m \div a^n = a^{m-n}$

Simplifying the Expression

  1. Simplify the powers within the parentheses:

    • $(5^5)^5 = 5^{5 \cdot 5} = 5^{25}$
    • $(5^4)^6 = 5^{4 \cdot 6} = 5^{24}$
  2. Substitute the simplified powers back into the original expression:

    • $((5^5)^5 - 2 \cdot (5^4)^6) \div 5^{23} = (5^{25} - 2 \cdot 5^{24}) \div 5^{23}$
  3. Factor out a common factor of $5^{24}$ from the numerator:

    • $(5^{25} - 2 \cdot 5^{24}) \div 5^{23} = (5^{24}(5 - 2)) \div 5^{23}$
  4. Apply the division property of exponents:

    • $(5^{24}(5 - 2)) \div 5^{23} = 5^{24 - 23} \cdot (5 - 2)$
  5. Simplify the expression:

    • $5^{24 - 23} \cdot (5 - 2) = 5^1 \cdot 3 = 15$

Therefore, the simplified value of the expression $((5^5)^5 - 2 \cdot (5^4)^6) \div 5^{23}$ is 15.

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