Question

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

Answer 1

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}`