RS Aggarwal - Mathematics

Book: RS Aggarwal - Mathematics

Chapter: 2. Polynomials

Subject: Maths - Class 10th

Q. No. 7 of Exercise 2C

Listen NCERT Audio Books to boost your productivity and retention power by 2X.

7

If ‒4 is a zero of the polynomial x2 ‒ x (2k + 2) then find the value of k.

It is given in the question that,

One of the zero of the polynomial x2 – x (2k + 2) is - 4


It will satisfy the above polynomial


Now, we have


(- 4)2 – (- 4) - (2k + 2) = 0


16 + 4 - 2k - 2 = 0


- 2k = - 18


k = 18/2


k = 9


Chapter Exercises

More Exercise Questions