Pierwiastakimi wielomanu W(x)=x^2 + bx+c są liczby -6 i 3 parametry b ic wielomianu są równe
a) b=3 c=-18
b) b= - 18 c=3
c) b= -3 c=18
d) b=18 c=-3
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(-6)²-6b+c=0
3²+3b+c=0
36-6b+c=0
9+3b+c=0
c=6b-36
9+3b+6b-36=0
9b=27
b=27:9
b=3
............
c=6×3-36=-18
b=3
c=-18
a]