Выполните возведение в квадрат: 1) (-0,4x - 1,5y)² 2) (-x² - y)² 3) (-a²b² + c^10)². Created by TRESAD12. algebra-ru

Выполните возведение в квадрат: 1) (-0,4x - 1,5y)² 2) (-x²

August 2022 1 17 Report

Выполните возведение в квадрат:
1) (-0,4x - 1,5y)²
2) (-x² - y)²
3) (-a²b² + c^10)²

Answers & Comments

magicmasha 1) (-(0,4х+1,5у))^2= (-*- дает+)=
0,16х^2+2*(0,4х)*(1,5у)+2,25у^2=
0,16х^2+1,2ху+2,25у^2;
2) (-(х^2+у))^2= х^4+2х^2*у+у^2;
3) (с^10-а^2б^2)^2= с^20-2*с^10*а^2*б^2+а^4*б^4.

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