<span>x²-5x+4/x²-4 ≤ 1=
=x^2/1+4/x^2-5x<1+4
=x^2+x^2/1+4-5x<5
=2x^2/5-5x<5
=2x^2-5x<0
2x^2-5x
x(2x-5)=0
x=0 или 2x-5=0
x=0 или 2х=5|:2
x=0или 2,5
точки 0;2,5</span>
Y=-12
-12-6/(-4)=4,5
y=0
0-6/(-4)=1.5
y=1
1-6/(-4)=1.25
4x² + 4x + 1 - (16 - 16x + 4x²) = 0
4x² + 4x + 1 - 16 + 16x - 4x² = 0
20x - 15 = 0
20x =15
x = 3/4 = 0,75