9th Polynomials part 2

Class-IX

Chapter – Polynomials

1.         Verify whether -2 is a zero of polynomial x+2.

2.         Find the zero of the polynomial p(x)=2x+1.
3.         Verify whether 2 and -2 are polynomial x²-4.
4.         Find the value of  the polynomial  5x-4x²+3 at
            a)x=0         b)x=-1     c)x=2.

5.         Find p(0),p(1) and p(2) for each of the following polynomials:

            a)p(y)=y²-y+1
            b) p(t)=2+t+2t²-t³
               c)p(x)=x³
            d)p(x)=(x-1)(x+1)

6.         Verify whether the following are zeros of the   polynomial, indicated against them.

            a)p(x)=x²-1, x=1,-1
            b)p(x)=(x+1)(x-2),x=-1,2
            c)p(x)=2x+1,x=-1,2

7.         Find the zero of the polynomial in each of  the following:

            a)p(x)=x+5            b)p(x)=x-5         c)p(x)=2x+5         d)p(x)=3x-2
            e)p(x)=3x                    f) p(x)=ax,a≠0 g)p(x)=cx+d,c≠0, c, d are real   numbers.

8.         Find the value of each of the following polynomials at the indicated value of the variables:

           a)p(x)=5x²-3x+7 at x=1

            b)p(x)=3y³-4y+4 at y=2
            c)p(t)=4t⁴+5t³-t²+6 at t=-1

 

Compiled by:-

Sanjeev Kumar Taneja
District Resource Person Math
Ludhiana