Предмет: Алгебра, автор: lifefringe

Пожалуйста, помогите решить всю третью часть!
(или хотя бы С1 и С3)

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Ответы

Автор ответа: shevtsovavalia
0
C3
Вычтем из первого уравнения второе:
5х²-3x-2=0
D=49
x=1; y=2+1=3
x=-0,4; y=-0,8+1-0,2
Ответ: (1;3),(-0,4;0,2).
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