Q3 of 90 Page 27

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

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

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


More from this chapter

All 90 →
2

For each polynomial of the following polynomials, find the value of p(2), p(1) and p(0).

p(t) = 2 + t+ t2 –t3

 3

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

p(x) = x2 – 1; x=1, -1

 3

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

p(x)=4x+5; x= -5/4

 3

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

p(x)=3x2; x=0