asamuels216
asamuels216 asamuels216
  • 04-02-2019
  • Mathematics
contestada

please help me factor
x2 - 25=?

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 04-02-2019

Answer:

x^2 -25 = (x+5) (x-5)

Step-by-step explanation:

X^2-25

This is the difference of squares

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

a^2 = x^2  so a=x

b^2 = 25  so b=5

x^2 -25 = (x+5) (x-5)

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