justin8572 justin8572
  • 14-01-2019
  • Mathematics
contestada

Which of the following is the complete factorization of 25a 2-100

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wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 14-01-2019

Answer:

25(a-2)(a+2)

Step-by-step explanation:

25a^2 -100  

We can factor out 25

25(a^2 -4)

a^2 -4  is the difference of squares a^2-b^2= (a-b)(a+b)

where a =a and b=2

a^2 -4 = (a-2)(a+2)

25a^2 -100 = 25(a-2)(a+2)


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