Y = 2 + x
x^2 + y^2 = 10
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y^2 = ( 2 + x )^2 = 4 + 4x + x^2
y^2 = 10 - x^2
10 - x^2 = 4 + 4x + x^2
2x^2 + 4x - 6 = 0
2( x^2 + 2x - 3 ) = 0
D = 4 + 12 =16 = 4^2
x1 = ( - 2 + 4 ) : 2 = 1
x2 = ( - 2 - 4 ) : 2 = - 3
y = 2 + x
y1 = 2 + 1 = 3
y2 = 2 - 3 = - 1
ОТВЕТ ( 1 ; 3 ) ; ( - 3 ; - 1 )