Verify that whether -1 is zeroes of the polynomial p(x) = 2x^3 - 9x^2 + x + 12 and find the value of p(0), p(1) and p(2)
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P(-1)=2(-1)^3-9(-1)^2+(-1)+12
=2(-1)-9-1+12
=-2-9-1+12
=-12+12
=0
Yeah -1 is zero of above equation
P(0)=2(0)^3-9(0)^2+(0)+12=0-0+0+12=12
P(1)=2(1)^3-9(1)^2+1+12=2-9+1+12=6
P(2)=2(2)^3-9(2)^2+2+12=16-36+2+12=-20+14=-6
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