Respuesta:
Espero te sirva
Explicación paso a paso:
E=[tex](x+2)^{2} -2(x+1)^{2} +x^{2}[/tex]
[tex]x^{2} +4x+4-2(x+1)^{2} +x^{2} \\[/tex]
[tex]x^{2} +4x+4-2(x^{2} +2x+1)+x^{2}[/tex]
[tex]x^{2} +4x+4-2x^{2} +4x-2+x^{2}[/tex]
[tex]2[/tex]
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Respuesta:
Espero te sirva
Explicación paso a paso:
E=[tex](x+2)^{2} -2(x+1)^{2} +x^{2}[/tex]
[tex]x^{2} +4x+4-2(x+1)^{2} +x^{2} \\[/tex]
[tex]x^{2} +4x+4-2(x^{2} +2x+1)+x^{2}[/tex]
[tex]x^{2} +4x+4-2x^{2} +4x-2+x^{2}[/tex]
[tex]2[/tex]