Respuesta :

Hello from MrBillDoesMath!

Answer:  Choice C

Discussion:

x^2 -14x + 49 =

x^2 - ( 7+7) x + 49 =

x^2 -  2(7)x + 7*7 =

(x-7) ^2 = (x-7)(x-7)  which is Choice C


Thank you,

MrB


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