(3a^2b^7)(5a^3b^8)

2 min read Jun 16, 2024
(3a^2b^7)(5a^3b^8)

Simplifying Expressions with Exponents: (3a^2b^7)(5a^3b^8)

In mathematics, we often encounter expressions with exponents. These exponents represent repeated multiplication of a base number. To simplify expressions with exponents, we use the rules of exponents. Let's explore the simplification of the expression (3a^2b^7)(5a^3b^8).

Understanding the Rules of Exponents

Before we begin simplifying, let's recall some key rules:

  • Product of powers: When multiplying terms with the same base, we add the exponents. For example: a^m * a^n = a^(m+n)
  • Commutative Property of Multiplication: The order of multiplication doesn't matter. For example: a * b = b * a

Simplifying the Expression

  1. Rearrange the terms: Using the commutative property, we can rearrange the expression to group similar terms together: (3 * 5) * (a^2 * a^3) * (b^7 * b^8)

  2. Apply the product of powers rule:

    • 3 * 5 = 15
    • a^2 * a^3 = a^(2+3) = a^5
    • b^7 * b^8 = b^(7+8) = b^15
  3. Combine the simplified terms: 15 * a^5 * b^15 = 15a^5b^15

Therefore, the simplified form of the expression (3a^2b^7)(5a^3b^8) is 15a^5b^15.

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