1) 2x/x-3 + 11/2=3/x 2) 2x-8/x-5 + 10/(x-5)(x+5) =x+4/x+5 3) 2/2-x + 1/2=4/2x+x^2

2-3+5.5=3/x 4.5=3/x 4.5=3/x. x[latex] \neq [/latex]0 4.5x=3 x=3/4.5 x=3/45/10 x=10/15 x=2/3. x неравен 0 1-x+1/2=2x+x2 2+1/2-x=2x+x2 3/2-x=2x+x2 2*3/2-2x=2*2x+2x2 3-2x=4x+2x2 3-2x-4x-2x2=0 3-6x-2x2=0 -2x2-6x+3=0 2x2+6x-3=0 ищем дискриминант x1=-3-корень15/2 x2=-3+корень15/2