Respuesta :

akiran007

Answer:

x=3, x=-4

Explanation:

x² +x -12

= x² +4x-3x-12

= x(x+4) -3(x+4)

= (x-3)(x+4)

x-3=0, x+4=0

x=3, x=-4

Answer: (x-3) (x+4)

Explanation:

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