Respuesta :

thecammanshow

Answer:

x=−1 ,1,−2

Step-by-step explanation:

x3+2x2−x=2

x3+2x2−x−2=2−2

x3+2x2−x−2=0

(x+1)(x−1)(x+2)=0

x+1=0 or x−1=0 or x+2=0

x=−1 or x=1 or x=−2
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