Question

у = x^2-4x+4, y=4-x^2

Answer 1

2y=-4x+8
y=4-2x
4-2x=4-x^2
x(x-2) = 0
x1 = 0        x2 = 2
y1 = 4        y2 = 0
Ответ: (0;4) и (2;0)