NSEJS · Mathematics

Quadratic Equations

Solution by factorisation, completing the square, quadratic formula and discriminant.

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  • Q1 · Quadratic Equations · HARD

    If α and β are the roots of the equation 2x² - 7x + 3 = 0, then the value of (1/α² + 1/β²) is:

  • Q2 · Quadratic Equations · EASY

    Solve the quadratic equation x² - 5x + 6 = 0 by factorisation. The roots are:

  • Q3 · Quadratic Equations · EASY

    The discriminant of the quadratic equation 3x² + 4x + 5 = 0 is:

  • Q4 · Quadratic Equations · MEDIUM

    Using the quadratic formula, find the roots of x² - 6x + 8 = 0:

  • Q5 · Quadratic Equations · MEDIUM

    Solve by completing the square: x² + 8x - 20 = 0. The roots are:

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