Question

Determine whether the given value of x is a zero of the given
polynomial or not: x2+x+1;x=-1​

Answer 1

Put x =-1

(-1)^2+(-1) +1

=1-1+1

=1

It is not zeros of polynomial.

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Answer 2

AnswEr :

➤ p(x) = x² + x + 1

➤ p(-1) = (-1)² + (-1) + 1

= 1 - 1 + 1

= 2 - 1

= 1

* So x = -1 is not Zero of Polynomial

p(x) = x² + x + 1