Respuesta :

Answer:

y = x² + 2x - 7

Step-by-step explanation:

The standard form of a quadratic is y = ax² + bx + c : a ≠ 0

Given

y = (x + 1)² - 8 ← expand factor using FOIL

  = x² + 2x + 1 - 8

  = x² + 2x - 7 ← in standard form

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