ISEE Upper Level Quantitative : How to multiply variables

Study concepts, example questions & explanations for ISEE Upper Level Quantitative

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Example Questions

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Example Question #21 : How To Multiply Variables

Evaluate .

Possible Answers:

Correct answer:


 is the product of the sum and the difference of the same two binomials, so this can be rewritten, and evaluated, using the difference of squares pattern:


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