Respuesta :

saphiakey

Answer:

i think its b im not 100% sure

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Given

x² + 4x + 1 = 10 ( subtract 1 from both sides )

x² + 4x = 9

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(2)x + 4 = 9 + 4

(x + 2)² = 13 → B

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