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Solve for x in the equation x2 + 10x+ 12 = 36.
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O x=-12 or x = 2
O x=-11 or x=1
x= -2 or x = 12
O x= -1 or x = 11

Respuesta :

Answer:

x = -12  or  x = 2

Step-by-step explanation:

   x²+ 10x+ 12 = 36

⇔

   x²+ 10x - 24 = 0

⇔

   x² - 2x + 12x - 24 = 0

⇔

   x(x - 2) + 12(x - 2) = 0

⇔

   (x - 2)(x + 12) = 0

⇔

   x - 2 = 0  or  x + 12 = 0

⇔

  x = 2  or  x = -12

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