verify whether the following are zero polynomial. p(x) =3xsquare-1,x=-1÷√3,2÷√3
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3x^2-1
Let x=-1/root3
3(-1/root3)^2-1
3x1/3-1
0
Now
Let x=2/root3
3(2/root3)^2-1
4-1
3
Hence -1/root3 is the zero of p(x)
But not 2/root3
Let x=-1/root3
3(-1/root3)^2-1
3x1/3-1
0
Now
Let x=2/root3
3(2/root3)^2-1
4-1
3
Hence -1/root3 is the zero of p(x)
But not 2/root3
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