Ar1r6isasJstHeide
Ar1r6isasJstHeide Ar1r6isasJstHeide
  • 25-05-2016
  • Mathematics
contestada

Factor x^2 + 10x + 25. Show your work. (3 points)

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Petroniusz
Petroniusz Petroniusz
  • 25-05-2016
 a² + 2ab + b² = (a+b) * (a + b)   pattern condensed multiplication

 x²      +        10x      +  25
 a²      +        2ab      +  b²    

(1x)²  +      2*1x*5    + (5)²   =     (a+b)*(a+b)
a=x         2ab= 10x      b=5  =     (x+5)*(x+5)

Answer : (x+5)*(x+5)
        

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