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I need help with this question parts 1 - 4

I need help with this question parts 1 - 4-example-1

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Given:


k(x)=-5x^5+3x

Find: k(-x)

Explanation:


\begin{gathered} k(x)=-5x^5+3x \\ k(-x)=-5(-x)^5+3(-x) \\ =-5(-x^5)-3x \\ =5x^5-3x \end{gathered}

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