-8x^2+2x+1=0 *(-1)
8x^2-2x-1=0
D=(-2)^2-4*8*(-1)=4+32=36
x1=2+6/2*8=8/16=1/2=0,5
x2=2-6/2*8=-4/16=-1/4=-0,25
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-8x^2+2x+1=0 *(-1)
8x^2-2x-1=0
D=(-2)^2-4*8*(-1)=4+32=36
x1=2+6/2*8=8/16=1/2=0,5
x2=2-6/2*8=-4/16=-1/4=-0,25