RD Sharma - Mathematics

Book: RD Sharma - Mathematics

Chapter: 2. Polynomials

Subject: Maths - Class 10th

Q. No. 28 of CCE - Formative Assessment

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28

If √5 and – √5 are two zeroes of the polynomial x3 + 3x2 – 5x – 15, then its third zero is

Given,


x3 + 3x2 – 5x – 15


Zeros = √5 and – √5



So the third zero = – 3

Chapter Exercises

More Exercise Questions

8

The sum and product of the zeros of a quadratic polynomial are and — 3 respectively. What is the quadratic polynomial?