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inna31535
@inna31535
August 2021
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УПростите выражение!!! помогите решить!!!
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ЕкарныйБабай
A^2-b^2=(a-b)(a+b)
(x^2+1-x√5)(x^2+1+x√5) = (x^2+1)^2 - (x√5)^2 = x^4+2x^2+1-5x^2=x^4-3x^2+1
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ЕкарныйБабай
нравица решение поставь лучшие . Хачу отличником стать
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Answers & Comments
(x^2+1-x√5)(x^2+1+x√5) = (x^2+1)^2 - (x√5)^2 = x^4+2x^2+1-5x^2=x^4-3x^2+1