Home
Class 9
MATHS
Zero of the polynomial p(x) =2x+5 is...

Zero of the polynomial `p(x) =2x+5 ` is

A

`-(2)/(5)`

B

`-(5)/(2)`

C

`(2)/(5)`

D

`(5)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
B

Given `P(x) = 2x+5`
For zero of the polynomial ,put `p(x)=0`
`therefore " " 2x+5=0`
`implies " " x=-(5)/(2)`
Hence , zero of the polynomial `p(x) "is " (-5)/(2)`.
Promotional Banner

Topper's Solved these Questions

  • POLYNOMIALS

    NCERT EXEMPLAR ENGLISH|Exercise EXERCISE 2.2 very short Answer type Questions|32 Videos
  • POLYNOMIALS

    NCERT EXEMPLAR ENGLISH|Exercise EXERCISE 2.3 very short Answer type Questions|10 Videos
  • NUMBER SYSTEMS

    NCERT EXEMPLAR ENGLISH|Exercise LONG ANSWER TYPE QUESTIONS|7 Videos
  • QUADRILATERALS

    NCERT EXEMPLAR ENGLISH|Exercise LONG ANSWER TYPE QUESTIONS|18 Videos

Similar Questions

Explore conceptually related problems

If 1 is a zero of the polynomial p(x) = ax^2 — 3 (a — 1) x - 1 , then find the value of a.

Find a zero of the polynomial p(x)=2x+1 .

Find a zero of the polynomial : (i) p(x)=4x-3 (ii) p(x)=2x-2

Verify that (i) 3 is a zero of the polynomial x-5. (ii) -2 is a zero of the polynomial x+2. (iii) (7)/(3) is a zero of the polynomial 3x-7. (iv) 2 and 3 are zeros of the polynomial (x-2)(x-3). (v) (13)/(2) and -3 are zeros of the polynomial 2x^(2)-7x-39 .

The sum of the zeroes of the polynomial 2x^(2) - 8x+ 6 is

For which values of a and b are zeroes of q(X) =x^(3)+2x+a also zeroes of the polynomial p(x) =x^(5)-x^(4)-4x^(3)+3x^(2)+3x+b ? Which zeroes of p(x) are not zeroes of p(x)?

For which values of a and b , the zeroes of q(x) = x^(3)+2x^(2)+a are also the zeroes of the polynomial p(x) = x^(5)-x^(4)-4x^(3)+3x^(2)+3x +b ? Which zeores of p(x) are not the zeroes of q(x) ?

The following figure shows the graph of y= p(x) , where p(x) is a polynomial in variable x . The number of zeroes of the polynomial p(x) is

If alpha and beta are the zeros of the polynomial f(x)=x^2+p x+q , form a polynomial whose zeros are (alpha+beta)^2 and (alpha-beta)^2 .

Verify that 3,\ 1,-1/3 are the zeroes of the cubic polynomial p(x)=3x^3-5x^2-11 x-3 , and then verify the relationship between the zeroes and the coefficients.