Respuesta :

Answer:

f(x)=(x-9/2)²-25/4

Step-by-step explanation:

f(x)=x²-9x+14

f(x)=x²-9x+(-9/2)²-(-9/2)²+14

f(x)=(x-9/2)²-81/4+14

f(x)=(x-9/2)²+(-81+56)/4

f(x)=(x-9/2)²-25/4

Answer:

Step-by-step explanation:

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