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3-122.

Determine all values of where given  . 3-122 HW eTool (Desmos) Homework Help ✎

Since is cubic, will be quadratic. Predict how many solutions there will be to .

The blue curve shows intersecting the dotted line . Do your solutions look correct?

Use the Power rule to find .

Set , and solve for .

Use the eTool below to explore the graph of f(x).
Click the link at right for the full version of the eTool: Calc 3-122 HW eTool