Roots, nature, sign of quadratic expression, location of roots.
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Q1 · Quadratic Expressions · HARD
The quadratic expression x² - 2x + 5 can be written in the form (x - h)² + k. The value of k is
Q2 · Quadratic Expressions · MEDIUM
If α and β are roots of x² + 3x - 5 = 0, then α + β equals
Q3 · Quadratic Expressions · EASY
The discriminant of the quadratic equation 2x² + 3x - 2 = 0 is
Q4 · Quadratic Expressions · EASY
The roots of the equation x² - 5x + 6 = 0 are