Ответ:
(x+4)^4+2(x+4)^2-8=0
x^4+256+2x^2 +32-8=0
x^4+2x^2+256+24=0
2x^6=0-256-24
2x^6=-280
x^6=-280/2
x^6=-140
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Ответ:
(x+4)^4+2(x+4)^2-8=0
x^4+256+2x^2 +32-8=0
x^4+2x^2+256+24=0
2x^6=0-256-24
2x^6=-280
x^6=-280/2
x^6=-140