Предмет: Алгебра, автор: YogaZip06

помогите решить систему уравнений методом сложения
x^2-y^2=7

x^2+y^2=25

Ответы

Автор ответа: felhsevovp3qk7r

2

Здравствуйте. Решение системы состоит в том что при складывании двух уравнений получим 2x^2 = 32 отсюда x = +-4 и y = +-4. Все комбинации с этими числами являются правильными.

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© Macmillan Publishers Limited, 2015
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