The polynomial $x^2 + bx + b$ is a factor of $x^3 + 2x^2 + 2x + c.$  Enter all possible values of $b,$ separated by commas.
Question:
The polynomial $x^2 + bx + b$ is a factor of $x^3 + 2x^2 + 2x + c.$  Enter all possible values of $b,$ separated by commas.
Answer:
Let's think step by step.

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The polynomial $x^2 + bx + b$ is a factor of $x^3 + 2x^2 + 2x + c.$  Enter all possible values of $b,$ separated by commas.
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