Q3 of 90 Page 27

Verify whether the values indicated against the following polynomials are zeroes of the polynomial.

p(x)=3x2-1;

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) = 3x2 – 1;


substituting in 3x2 – 1


⇒ p() = 3 – 1


⇒ p() = 3() – 1


⇒ p() = 1 – 1


⇒ p() = 0


Yes is zero of polynomial p(x) = 3x2 – 1


substituting in 3x2 – 1


⇒ p() = 3 – 1


⇒ p() = 3() – 1


⇒ p() = 1 – 1


⇒ p() = 0


Yes is zero of polynomial p(x) = 3x2 – 1


More from this chapter

All 90 →
3

Verify whether the values indicated against the following polynomials are zeroes of the polynomial.

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 3

Verify whether the values indicated against the following polynomials are zeroes of the polynomial.

p(x)=ax+b; x= -b/a

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Verify whether the values indicated against the following polynomials are zeroes of the polynomial.

p(x)=3x+2; x= -2/3

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Find the zeroes of the following polynomials.

i. p(x)=x-4


ii. p(x)=4x


iii. p(x)=bx, b≠0


iv. p(x)=x+3


v. p(x)=2x-1


vi. p(x)=3x+7


vii. p(x)=cx +d, c≠0, c, d are real numbers.