0 \\ \\ x_1= \frac{5,4- \sqrt{21,16} }{2}=0,4 \\ \\ x_2= \frac{5,4+ \sqrt{21,16} }{2}=5" alt=" \frac{2(x-1)+3x}{x-0,4}=x \\ \\ 2x-2+3x=x^2-0,4x \\ \\ x^2-5,4x+2=0 \\ \\ D=5,4^2-4*1*2= 21,16>0 \\ \\ x_1= \frac{5,4- \sqrt{21,16} }{2}=0,4 \\ \\ x_2= \frac{5,4+ \sqrt{21,16} }{2}=5" align="absmiddle" class="latex-formula">