RD Sharma - Mathematics

Book: RD Sharma - Mathematics

Chapter: 2. Polynomials

Subject: Maths - Class 10th

Q. No. 3 of Exercise 2.3

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3

Obtain all zeros of the polynomial , if two of its zeros are -2 and -1.

We know that if is a zero of a polynomial then


Since -2 and -1 are zeros of Therefore is a factor of .


Now on dividing to find other zeros.



By applying division algorithm, we have:


= ()()


= ()


= {}


Hence, the zeros of the given polynomial are:


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