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Find p(0), p(1) and p(-1) in the followi...

Find p(0), p(1) and p(-1) in the following polynomials.
i) p(x)= 3x+6
ii)p(x)= `3 x^ 2` + 6 x + 1

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i) p(x)= 3x+6
p(0)=5
p(1)=8
p(-1)= 2
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