What is the value of a + b + c?
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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