<em>x²/(x³-4x)+1/(4-2x)=x²/x(x²-4)+1/2(2-x)=x/(x-2)(x+2)+1/2(2-x)=(-2x+x+2)/2(x²-4)=(2-x)/2(x-2)(x+2)=1/-2(x+2)=1/(-2x-4).</em>
<u>-27ab </u>= -3
9ab
<u>(m) (n) </u>= 1
(mn)
<u>48am </u>= 12
4am
<span>х</span>³<span>+2x</span>²<span>+x=0
x*(x</span>²+2x+1)=0
x*(x+1)²=0
x=0 x₁=0
(x+1)²=0 x₂=-1