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Which polynomial has a root at x = -1?

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Question: Which polynomial has a root at x = -1?

Options:

  1. x^2 + 2x + 1
  2. x^2 - 2x + 1
  3. x^2 + x - 2
  4. x^2 - x - 2

Correct Answer: x^2 + 2x + 1

Solution: 

The polynomial x^2 + 2x + 1 can be factored as (x + 1)(x + 1), indicating that -1 is a root.

Which polynomial has a root at x = -1?

Practice Questions

Q1
Which polynomial has a root at x = -1?
  1. x^2 + 2x + 1
  2. x^2 - 2x + 1
  3. x^2 + x - 2
  4. x^2 - x - 2

Questions & Step-by-Step Solutions

Which polynomial has a root at x = -1?
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