Find the fourth-degree polynomial function with zeros 9, − 9, 9i, and − 9i. Write the function in factored form. f(x) =
(Simplify your answer. Type your answer in factored form. Type an expression using x as the variable. Express complex numbers in terms of i. )

Please show work to reach this solution - (x − 9)(x + 9)(x − 9 i )(x + 9 i )

18x

Step-by-step explanation:

d

dx

(9(x−9i)(x+9i))

Use the product rule.

=

d

dx

(9(x−9i)(x+9i))

=9(x−9i)(

d

dx

(x+9i))+(x+9i)(

d

dx

(9(x−9i)))

=9(x−9i)(1+0)+(x+9i)(9)

Simplify.

=18x

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step-by-step explanation:

49%

step-by-step explanation:

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