5 (1-у)^2 -(3+у)^2 -3(1-у)(1+у) упростить выражение. Created by goldsvetlana140. algebra-ru

5 (1-у)^2 -(3+у)^2 -3(1-у)(1+у) упростить выражение...

goldsvetlana140 @goldsvetlana140

July 2022 1 14 Report

5 (1-у)^2 -(3+у)^2 -3(1-у)(1+у)
упростить выражение

Answers & Comments

zhenyaM2002

Verified answer

5*(1-y)^2- (3+y)^2-3*(1-y)(1+y)=
= 5*(1-2*y*1+y^2) - (3^2+2*3*y+y^2) -3(1-y^2)=
=5- 10y + 5y^2 - 9 - 6y - y^2 -3 + 3y^2=
= (5y^2-y^2+3y^2) +(-10y-6y) +(5-9-3)=
= 7 y^2 - 16y -7

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goldsvetlana140 July 2022 | 0 Ответы

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