Помогите Пожалуйста вот: 1) (6а+1)(2а-3)=0 2) 7у-(3у-(8у-(5-6у))). Created by olya9607. matematika-ru

Помогите Пожалуйста вот: 1) (6а+1)(2а-3)=0 2) 7у-(3у-(8у-(5-6у)))...

July 2022 1 4 Report

Помогите Пожалуйста вот:

1) (6а+1)(2а-3)=0

2) 7у-(3у-(8у-(5-6у)))

Answers & Comments

lyubacha2 1) 12а^2-18a+2a-3=0
a(12a-18+2)=0
a=0 a=0 a=0 a=0
12a-18+2=0 12a=16 a=16/12 a= 1 1/3
2) 7y-(3y-(8y-(5-6y)))=0
7y-(3y-(8y-5+6y))=0
7y-(3y-8y+5-6y)=0
7y-3y+8y-5+6y=0
18y=5
y=5/18

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