(1,4; -0,2) и (1; 3).
Объяснение:
[3х+у=4
[x2+у2=2
[y = 4-3x
[x2+(4-3x)2=2
x2+16-24x+9x2=2
10x2-24x+14=0
5x2-12x+7=0
D = 144 - 140 = 4
x1 = (12+2)/10 = 1,4
x2 = (12-2)/10 = 1
y1 = 4-4,2 = -0,2
y2 = 4-1 = 3
(1,4; -0,2) и (1; 3).
Объяснение:
[3х+у=4
[x2+у2=2
[y = 4-3x
[x2+(4-3x)2=2
x2+16-24x+9x2=2
10x2-24x+14=0
5x2-12x+7=0
D = 144 - 140 = 4
x1 = (12+2)/10 = 1,4
x2 = (12-2)/10 = 1
y1 = 4-4,2 = -0,2
y2 = 4-1 = 3