Respuesta :

D. y=x2+6x+1 :) hope this helps

Answer:

[tex]y=x^2+6x+1[/tex]

Step-by-step explanation:

[tex]y= (x+3)^2-8[/tex]

[tex]\left(x+3\right)^2[/tex]

[tex]x^2+2x\cdot \:3+3^2[/tex]

Multiply 2*3=6

[tex]x^2+6x+3^2[/tex]

[tex]3^2=9[/tex]

[tex]x^2+6x+9[/tex]

[tex]x^2+6x+9-8[/tex]

Subtract 9 - 8=1

[tex]x^2+6x+1[/tex]

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