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If the quadratic equation x^2 + 2x + k = 0 has one root equal to -1, what is the value of k? (2022)

Practice Questions

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If the quadratic equation x^2 + 2x + k = 0 has one root equal to -1, what is the value of k? (2022)
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Questions & Step-by-step Solutions

1 item
Q
Q: If the quadratic equation x^2 + 2x + k = 0 has one root equal to -1, what is the value of k? (2022)
Solution: Substituting x = -1 into the equation gives (-1)^2 + 2(-1) + k = 0, leading to 1 - 2 + k = 0, thus k = 1.
Steps: 0

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