Math Problem Statement

Simplify and evaluate expressions involving powers, including multiplication and division of powers.

Solution

The question visible in the image pertains to simplifying and evaluating powers, particularly related to multiplying and dividing powers. Let's go through each of the problems:

  1. a. x2x5x1\frac{x^2 \cdot x^5}{x^1}
    Using the law of exponents: aman=am+na^m \cdot a^n = a^{m+n} and aman=amn\frac{a^m}{a^n} = a^{m-n}:

    • First, simplify the numerator: x2x5=x2+5=x7x^2 \cdot x^5 = x^{2+5} = x^7
    • Now, divide by x1x^1:
      x7x1=x71=x6\frac{x^7}{x^1} = x^{7-1} = x^6
  2. b. y10y6\frac{y^{10}}{y^6}
    Using the division law for exponents aman=amn\frac{a^m}{a^n} = a^{m-n}: y10y6=y106=y4\frac{y^{10}}{y^6} = y^{10-6} = y^4

  3. c. (23)(23)(2^3)(2^3)
    Applying the multiplication rule: aman=am+na^m \cdot a^n = a^{m+n}: 2323=23+3=262^3 \cdot 2^3 = 2^{3+3} = 2^6 Evaluate 262^6:
    26=642^6 = 64

  4. d. 8583\frac{8^5}{8^3}
    Using the division law for exponents: 8583=853=82\frac{8^5}{8^3} = 8^{5-3} = 8^2 Evaluate 828^2:
    82=648^2 = 64

  5. e. a3aa^3 \cdot a
    Here, we recognize that aa is the same as a1a^1, so apply the multiplication rule: a3a=a3+1=a4a^3 \cdot a = a^{3+1} = a^4

These are the simplified expressions and evaluations where possible.

Let me know if you'd like any further details on any of these or have questions about the steps!

5 related questions:

  1. How do you handle powers with different bases when multiplying or dividing?
  2. What happens when you raise a power to another power?
  3. How would the rules change for negative exponents?
  4. Can these rules be applied to fractional bases or exponents?
  5. How can you simplify expressions involving multiple variables with exponents?

Tip:

When multiplying or dividing powers, always focus on simplifying each step using the rules of exponents, which can make seemingly complex expressions much easier to handle.

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Math Problem Analysis

Mathematical Concepts

Algebra
Exponentiation
Laws of Exponents

Formulas

a^m * a^n = a^{m+n}
a^m / a^n = a^{m-n}

Theorems

Laws of Exponents

Suitable Grade Level

Grades 7-9