Trigonometry, 8th edition
The zeros of the polynomial function are 4 and 3i.
3i is a zero of the polynomial function.
The complex zeros occur in conjugate pairs, so, 3i is also a zero of the polynomial function.
From the linear factorization theorem, the polynomial f(x) can be written as :
Let a = 1, to obtain f(x).
.
The polynomial function is .
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