Question

x2 + 9x + 18= 0 factorizar

Answer 1

Respuesta:x² + 9x + 18= 0

a=1

b=9

c = 18

-b±√[b²-4ac]/2a

-9±√[9²-4(1)(18)]/2(1)

-9±√[81-72]/2

-9±√9/2

[-9±3]/2

x¹ =[-9-3]/2 = -12/2 = -6

x²= [-9+3]/2 = -6/2 = -3

(x+3)(x+6)

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