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Solve this quadratic equation by completing the square.
x2 + 4x = 15
A. X=-2 19
B. X=-4 + 15
C. X = -4 + 19
D. X = -2 + 15
SUB

Respuesta :

Answer:

-2+√19 or x=-2-√19

Step-by-step explanation:

completing the square it results :

x=-2+√19 or x=-2-√19

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