Rozwiąż równania. Ile spośród pierwiastków tego równania spełnia warunek  |x|

a) x(x - 2)(x + 1)=0 x=0 x-2=0 x=2 x+1=0 x=-1 x={-1,0,2} b) x(x+[latex] frac{3}{2} [/latex])(x-6)=0 x=0 x+[latex] frac{3}{2} [/latex] = 0 x=-[latex] frac{3}{2} [/latex] x-6=0 x=6 x={-[latex] frac{3}{2} [/latex],0, 6} c)x(2x+1)(3x+1)=0 x=0 2x+1=0 2x=-1 x=-[latex] frac{1}{2} [/latex] 3x+1=0 3x=-1 x=-[latex] frac{1}{3} [/latex] x={-[latex] frac{1}{2} [/latex],-[latex] frac{1}{3} [/latex],0} d)x(3x-2)(2x+3)=0 x=0 3x-2=0 3x=2 x=[latex] frac{2}{3} [/latex] 2x+3=0 2x=-3 x=-[latex] frac{3}{2} [/latex] x={-[latex] frac{3}{2} [/latex], 0, [latex] frac{2}{3} [/latex]} |x| < [latex] sqrt{2} [/latex] x<[latex] sqrt{2} [/latex] x>-[latex] sqrt{2} [/latex] x=<-[latex] sqrt{2} [/latex]; [latex] sqrt{2} [/latex]>