Respuesta :
Answer:
x = –3, x = –1, or x = 1
Step-by-step explanation:
when I put -3.-1,or 1 as x I get 0
Remainder Theorem Way :
x^3-3x^2-x-3
x^2 (x+3) -1(x+3) = 0
(x^2 -1) (x+3) = 0
(x+1) (x-1) (x+3) = 0
x= 1 x= -1 x= -3
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