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Expressing and Simplifying the Sum of Consecutive Even Integers

스터디 가이드 - 스마트 노트

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Q1. Write the sum of four consecutive even integers as an algebraic expression, if the first integer is x. Then simplify.

Background

Topic: Translating verbal statements into algebraic expressions and simplifying.

This question tests your ability to represent a sequence of consecutive even integers algebraically, then combine and simplify the resulting expression.

Key Terms and Formulas

  • Consecutive even integers: Numbers that differ by 2 (e.g., 2, 4, 6, 8).

  • Algebraic expression: A mathematical phrase involving variables and operations.

For four consecutive even integers starting with , the sequence is:

  • (first integer)

  • (second integer)

  • (third integer)

  • (fourth integer)

Step-by-Step Guidance

  1. Write the sum of the four consecutive even integers as an algebraic expression: .

  2. Remove the parentheses to combine all terms: .

  3. Group like terms (all the terms together and all the constants together).

  4. Combine the terms and the constants to form a simplified expression.

Try solving on your own before revealing the answer!

Sum of four consecutive even integers as an algebraic expression

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