Question

(x^2-7)^2+2 решите уравнение

Answer 1

(x^2-7)^2+2 =
=( (x^2)^2 - 2*x^2*7 + 7^2) + 2 =
= x^4 - 14x^2 + 49+2 =
= x^4 - 14x^2 + 51
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