3 x ^ 3 %2B x ^ 2 - 20 x %2B 12 x ) – InterviewSolution

1.

3 x ^ 3 %2B x ^ 2 - 20 x %2B 12 x )

Answer»

g(x)=0-> 3x-2=0-> x=2/3

p(2/3)=3*(2/3)³+(2/3)²-20*(2/3)+12=(3*8/27)+(4/9)-(20*2/3)+12=8/9+4/9-40/3+12=(8+4-120+108)/9=0/9=0

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