-x²+3x-4=0
D=3²-4*(-1)*(-4)=9+16=25
X1,2=-3+/-5/2=
x1=-4
x2=-4
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-x²+3x-4=0
D=3²-4*(-1)*(-4)=9+16=25
X1,2=-3+/-5/2=
x1=-4
x2=-4