сделать 1. {(x - 3)^2 + (y + 1)^2 = 9
{ y = -1
2. {x^2 - 2y^2 = 7
{x - y - 2 = 0

Объяснение:

1) (x - 3)² + (-1 + 1)² = 9

x²-6x+9+0=9

x²-6x=0

x1 = 0, x2 = 6

2) x=y+2

(y + 2)² - 2y² = 7

y²+4y+4-2y²-7=0

-y²+4y-3=0 |*(-1)

y²-4y+3 = 0

y1 = 1, y2 = 3

x1 = 1+2 = 3

x2 = 3+2 =5