How to solve Iift 2020 Question 22?

This question can be solved by applying the core concept explained in the solution above, followed by step-by-step calculation and elimination of options.

Which concept is tested in this question?

This question tests fundamental concepts commonly asked in IIFT exams.

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Iift 2020 Question 22

This is a detailed step-by-step solution for Iift 2020 Question 22. Understand the concept, common mistakes, and expert tips to solve similar questions in IIFT exam.

IIFT

(x-a)(x-b) = 0 having identical roots means a = b
Hence, the expression now effectively becomes (x-a)(x-a) = c
For x to have different values, we should have c > 0 because at c = 0, we will end up with x = a AND c < 0 is not possible for rational
values of a and x.
For c > 0, we will have x = a + (root c) and x = a - (root c)

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