karliesavannah16 karliesavannah16
  • 14-12-2017
  • Mathematics
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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

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Аноним Аноним
  • 14-12-2017
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. 
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