Which of the following equations has the sum of its roots? from

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 Multiple Choice QuestionsMultiple Choice Questions

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1.

Which of the following equations has the sum of its roots?

  • x2 - 5x + 6 = 0

  • x2 - 5x - 6 = 0

  • x2 + 5x + 6 = 0

  • x2 + 5x - 6 = 0


A.

x2 - 5x + 6 = 0

x2 - 5x + 6 = 0
The sum of roots open parentheses straight alpha space plus space straight beta close parentheses is given by,
                         equals negative straight b over straight a space equals space fraction numerator negative left parenthesis negative 5 right parenthesis over denominator 1 end fraction space equals space 5


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2.

The minimum value of (x - 2) (x - 9) is

  • negative 11 over 4

  • 49 over 4

  • 0

  • negative 49 over 4

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