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5. Find g(-3) when g(w) =-2w^5 +8w^3 – 25w+4 using two different algebraic strategies

1 Answer

5 votes

We have the following:


-2w^5+8w^3-25w+4

w = -3, replacing:


\begin{gathered} g(-3)=-2\cdot-3^5+8\cdot-3^3-25\cdot-3+4 \\ g(-3)=-2\cdot-243+8\cdot-27+75+4 \\ g(-3)=486-216+75+4 \\ g(-3)=349 \end{gathered}

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