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Which polynomial identity will prove that 49 − 4 = 45?

Difference of Squares
Difference of Cubes
Sum of Cubes
Square of a Binomial

User Dskinner
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1 Answer

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49 is a square of 7 and 4 is a square of 2. To get 45  you need to subtract 7² and 2². Therefore, its the difference of squares. 
User Fabio Phms
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