Respuesta :

Answer:

Step-by-step explanation:

1) Expand the expression, using (a + b) ^ 2 = a ^ 2 + 2ab + b ^ 2, develop the expression,

y = x ^ 2 + 2x + 1 + 3

2) Add the numbers (1 + 3), getting:

y = x ^ 2 + 2x + 4

3) The final solution of y is:

y = (x+1)^2 + 3

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