упростите выражение (х^2 +х+1)(х-1)-0,5(2х-1)(2х+1). Created by JOKE367. algebra-ru

упростите выражение (х^2 +х+1)(х-1)-0,5(2х-1)(2х+1)...

August 2022 1 7 Report

упростите выражение
(х^2 +х+1)(х-1)-0,5(2х-1)(2х+1)

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Lesben (x²+x+1)(x-1)-0,5(2x-1)(2x+1)=x³-x²+x²-x+x-1-0,5(4x²-1)=
=x³-1-2x²+0,5=x³-2x²-0,5

x=-0,5
(-0,5)³-2.(-0,5)²-0,5=-0,125-2.0,25-0,5=-0,125-0,5-0,5=
=-0,125-1=-1,125

0 votes Thanks 3

JOKE367 я забыла дописать- при х = -0,5

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