Q15 of 90 Page 2

Find a cubic polynomial with the sum of its zeroes, sum of the products of its zeroes taken two at a time and product of its zeroes as the numbers given below:

Let the zeroes be α, β and γ.


Then, we have





Now, required cubic polynomial





So, 7x3 – 5x2 + x – 1 is the required cubic polynomial which satisfy the given conditions.


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Find a cubic polynomial with the sum of its zeroes, sum of the products of its zeroes taken two at a time and product of its zeroes as the numbers given below:

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