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For the quadratic equation x² - 4x + k = 0 to have real roots, what must be the condition on k?

A. K ? 4
Posted in:  Quadratic Equations -  Algebra -  Mathematics

For the quadratic equation 2x² + 4x + k = 0 to have real roots, what must be the condition on k?

B. K ? 8
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For the quadratic equation x² - 6x + 8 = 0, what is the product of the roots?

A. 8
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If the roots of the quadratic equation x² + px + q = 0 are 3 and -2, what is the value of p?

C. -5
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Which of the following equations has roots that are both real and equal?

A. X² - 4X + 4 = 0
Posted in:  Quadratic Equations -  Algebra -  Mathematics