Respuesta :

Answer:

y = 2x² + 8x + 6

Step-by-step explanation:

given x = - 1 and x = - 3 are x- intercepts then

(x + 1) and (x + 3) are factors and

y = a(x + 1)(x + 3)

given a = 2, then

y = 2(x² + 4x + 3)

  = 2x² + 8x + 6


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