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Respuesta :

Answer:

Step-by-step explanation:

y=x²+8x-3

=x²+8x+(4)²-(4)²-3

=(x+4)²-16-3

or y=(x+4)²-19

Answer:

the answer is y=x^2+8x+16-3-16 or C.

Step-by-step explanation:

The next answer is 4 and -19