MHT CET 2026 Mathematics question

The number of cubic equations that can be formed with the coefficients 0, 3, 2, 4, 5, 6 when repetition of coefficients is allowed, is

(A)720
(B)1296
(C)864
(D)1080Correct

Answer: (D)

Solution

A cubic has four coefficients. The leading coefficient must be non-zero, so it can be chosen from in ways. Each of can be any of the six given values (including ), since repetition is allowed:

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Question ID VK-097780