5y²+2y-3=0
D=4+60=64=8²
X1=(-2+8)/10=6/10=3/5=0,6
X2=(-2-8)/10=-10/10=-1
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5y²+2y-3=0
D=4+60=64=8²
X1=(-2+8)/10=6/10=3/5=0,6
X2=(-2-8)/10=-10/10=-1