Which of the following is not a factor of 4x^3+12x^2-72x? a.(x+9) b.(x-3) c.4x d.(x+6
2 answers:
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Given:
The function is
To find:
The zeros of the given function.
Solution:
The general form of polynomial is
...(i)
where, a is a constant, are zeros of respective multiplicities
.
We have,
On comparing this with (i), we get
It means, -3 is a zero with multiplicity 2 and 5 is a zero with multiplicity 6.
Therefore, the correct option is B.