Respuesta :

Not sure sorry ok my bad

Answer:

4x^2 + 16x + 16

Step-by-step explanation:

xsquared + 8x + 16

4x^2+16x+____

divide by four:

x^2+4x+_4_  {(x + 4)^2}

times by four:

4x^2+16x+_16_

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