D=11^2- 4х7х4=9
х1= (-11+3) /14= 8/14
х2= (-11-3) /14 = -1
с) 7^2 - 4х4х3= 1
х1=(-7+1) /8= -0, 75
х2=(-7-1) /8=-1
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D=11^2- 4х7х4=9
х1= (-11+3) /14= 8/14
х2= (-11-3) /14 = -1
с) 7^2 - 4х4х3= 1
х1=(-7+1) /8= -0, 75
х2=(-7-1) /8=-1