Автор - 1hasbulatoba

Решите уравнение (20x+21)(3-10X)=0

Ответ

Автор - nedenispolybomy
(20x+21)(3-10X)=0
1. 20x+21=0; 
20x=-21;
x_1=-1 frac{1}{20}

2. 3-10x=0
-10x=-3
x_2= frac{3}{10}

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