Salut, ai rezolvarea in poza atasata. Spor!
[tex]\it -2x^3+6x^2-6x+2=0\bigg|_{:(-2)} \Rightarrow x^3-3x^2+3x-1=0 \Rightarrow \\ \\ \\ \Rightarrow (x-1)^3=0 \Rightarrow x=1\ \in\mathbb{R}[/tex]
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Salut, ai rezolvarea in poza atasata. Spor!
[tex]\it -2x^3+6x^2-6x+2=0\bigg|_{:(-2)} \Rightarrow x^3-3x^2+3x-1=0 \Rightarrow \\ \\ \\ \Rightarrow (x-1)^3=0 \Rightarrow x=1\ \in\mathbb{R}[/tex]