Discussion

Explanation:

The roots at f(x) = 0 are 3 and −4

∴ The equation can be written as (x – 3)(x + 4) = 0

Or, x² − x + 12 = 0

The co-efficient of x² is 1 here, but all equations which are multiple of this equation will also have same roots.

For example,

 10(x² − x + 12) = 0 will also have same roots

∴ (a + b + c) cannot be determined uniquely.

Hence, option (e).

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