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boreikova
@boreikova
August 2022
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Помогите срочно !!! За ранее огромное спасибо !!!
Упростите выражение
1(/x+1 - 3/x3+1+3/x2-x+1 )*(x-2x-1/x+1)
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гюйс
Verified answer
( 1/(х+1) -3/(х³+1) +3/(х² -х+1)) * (х²-2х-1)/(х+1)=
(1/(х+1) -3/((х+1)(х²-х+1)) + 3/(х² -х+1)) * (х²-2х-1)/(х+1)=
(х² -х+1 -3 +3х+3)/(((х+1)(х²-х+1)) * (х²-2х-1)/(х+1)=
((х² +2х+1)(х² -2х-1))/((х+1)²(х²-х+1))=
(х² -2х-1)/(х²-х+1)
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Answers & Comments
Verified answer
( 1/(х+1) -3/(х³+1) +3/(х² -х+1)) * (х²-2х-1)/(х+1)=(1/(х+1) -3/((х+1)(х²-х+1)) + 3/(х² -х+1)) * (х²-2х-1)/(х+1)=
(х² -х+1 -3 +3х+3)/(((х+1)(х²-х+1)) * (х²-2х-1)/(х+1)=
((х² +2х+1)(х² -2х-1))/((х+1)²(х²-х+1))=
(х² -2х-1)/(х²-х+1)