Answer :

After substituting the value for variable in the polynomial if we get 0 then that value is called zero of the polynomial.

It means that if p(x) = 0, then x will be called as the zero of the polynomial.

p(x) = 2x + 1; x = -1/2

substituting in 2x + 1

⇒ p() = 2 + 1

⇒ p() = - 1 + 1

⇒ p() = 0

Yes is zero of polynomial p(x) = 2x + 1

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