Предмет: Алгебра, автор: goldfeed

решите уравнение пж
14x^2+15=8x+15

Ответы

Автор ответа: ZoyaBogomolova
0
14x^2+15=8x+15;
14x^2-8x=0;
2x(7x-4)=0;
2x=0 => x=0;
7x-4=0; 7x=4 => x=4/7
Ответ: х=0 и х=4/7
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