а)3\4у-(5\6у-1,25)=0,55 б)3у в кубе-(3у в кубе - 6у) -(3у+4)=2 Помогите

а)3\4у-(5\6у-1,25)=0,55
б)3у в кубе-(3у в кубе - 6у) -(3у+4)=2
Помогите пожалуйстаа!!!!!!
- Предмет:
  Математика
- Автор:
  silver87
- 6 лет назад

Ответы 1

3\4у-(5\6у-1,25)=0.553\4 у-5\6у+1.25=0.55-1\12 у=0.55-1.25у=-0.7:(-1\12)=-7\10*(-12\1)у=42\5=8 2\5=8.4проверка3\4*42\5-5\6*42\5+1.25=0.55126\20-7+1.25=0.556,3+1.25-7=0.550.55=0.553у³-(3у³-6у)-(3у+4)=23у³-3у³+6у-3у-4=23у-4=23у=6у=6:3у=2проверка3*2³-(3*2³-6*2)-(3*2+4)=224-(24-12)-(6+4)=224-12-10=22=2
- Автор:
  friskymclaughlin
- 6 лет назад
- 0
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﻿а)3\4у-(5\6у-1,25)=0,55 б)3у в кубе-(3у в кубе - 6у) -(3у+4)=2 Помогите пожалуйстаа!!!!!!

Ответы 1

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а)3\4у-(5\6у-1,25)=0,55
б)3у в кубе-(3у в кубе - 6у) -(3у+4)=2
Помогите пожалуйстаа!!!!!!