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KreynTreyser
@KreynTreyser
July 2022
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Пожалуйста Алгебру помогите срочно
2x^3+7(x^2-x+1)(x+1) при x= -0,25
y^3-(y-3)(y^2+3y+9) при y= -1,75
По формулам:
a^3+b^3=(a+b)(a^2-ab+b^2)
a^3-b^3=(a-b)(a^2+ab+b^2)
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жуля9
1) 2х^3+7(х^3+1)=2х^3+7х^3+7=9х^3+7=9*(-0,25)^3+7=9*(-1/4)^3+7=9*(-1/64)+7=-9/64+7=6 55/64
2) у^3-у^3+27=27
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Answers & Comments
2) у^3-у^3+27=27