a]
a=2, b=-3, c=-2
b^2-4ac=[-3]^2-4*2*[-2]=9+16=25
b]
a=1, b=1/4, c=-1/2
b^2-4ac=1/4^2-4*1*[-1/2]=1/16+4/2=1/16+2=2i1/16
c]
a=-0,2, b=-1, c=-0,3
b^2-4ac=1-4*[-0,2]*[-0,3]=1-4*0,06=1-0,24=0,76
d]
a=-3/8, b=0,5, c=1
b^2-4ac=0,5^2-4*[-3/8]*1=0,25+12/8=0,25+3/2=0,25+1,5=1,75
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a]
a=2, b=-3, c=-2
b^2-4ac=[-3]^2-4*2*[-2]=9+16=25
b]
a=1, b=1/4, c=-1/2
b^2-4ac=1/4^2-4*1*[-1/2]=1/16+4/2=1/16+2=2i1/16
c]
a=-0,2, b=-1, c=-0,3
b^2-4ac=1-4*[-0,2]*[-0,3]=1-4*0,06=1-0,24=0,76
d]
a=-3/8, b=0,5, c=1
b^2-4ac=0,5^2-4*[-3/8]*1=0,25+12/8=0,25+3/2=0,25+1,5=1,75