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Home > INT3 > Chapter 2 > Lesson 2.2.4 > Problem 2-100


Paul states that is equivalent to . Joyce thinks that something is missing. Help Joyce show Paul that the two expressions are not equivalent. Explain using at least two different approaches: diagrams, algebra, numbers, or words.

Try multiplying using a square.

For a second approach, you could show the two expressions are not equal by substituting numbers for and .