If is a zero of the polynomial function, then is a factor of for the polynomial function.

Complex Zeros Occur in Conjugate Pairs : " If is a zeros of the function, the conjugate is also a zeros of the function ".

The zeros of the polynomial function are and .

Since complex zeros occur in conjugate pairs, the conjugate is also a zeros of the polynomial function.

Since is a zero of the polynomial function, is a factor of the polynomial function.

Since is a zero of the polynomial function, is a factor of the polynomial function.

Since is a zero of the polynomial function, is a factor of the polynomial function.

\ \ The polynomial function is.

Apply formula : .

.

Thus, the polynomial function is .

The polynomial function is  .