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Ale24636464
a fost răspuns

(x-2)(x+2)(x²+4)-(x²+1)²+2(x+1)²

Răspuns :

[tex](x-2)(x+2)=( x^{2} -4)[/tex]
[tex]( x^{2} -4)( x^{2} +4)=( x^{4} -16)[/tex]
[tex] ( x^{2} +1)^{2}=x^{4} +1+2x^{2}[/tex]
[tex]2(x+1) ^{2} =2(x^{2}+1+2x) [/tex]
[tex]x^{4} -16-x^{4}-1-2x^{2}+2x^{2}+2+4x= -16-1+2+4x=-15+4x[/tex]

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