Question

Решите систему уравнений:
(3х+7у)^2 =10y
(3x+7y)^2=10x

Answer 1

(3x+7y)²=10y
(3x+7y)²=10x

10x=10y
(3x+7y)²=10x

y=x
(3x+7x)²=10x

y=x
(10x)²=10x

y=x
100x²-10x=0

y=x
10x(10x-1)=0

x₁=0 y₁=0
x₂=1/10 y₁=1/10