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Verify whether the indicated numbers are zeros of the polynomials corresponding to them in that cases: `p(x)=x^3-6x^2+11 x-6,\ x=1,\ 2,\ 3`

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`=> x=1, p(1)=1^3-6(1)^2+11(1)-6`
`=>1-6+11-6=0`
`x=2,=>p(2)=2^3-6(2)^2+11(2)-6`
`=>8-24+22-6=0`
`x=3,p(3)=(3)^3-6(3)^2+11(3)-(6)`
`=>27-54+33-6=0`
Therefore, `x = 1, 2, 3` are zeros of p(x).
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