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ProtonsTalk
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    Discriminant of 9x2 + 2 = 10x is 28

    Solution:

    Discriminant of a quadratic equation ax2 + bx + c is

    => b2 – 4ac

    Given equation is 9x2 + 2 = 10x

    Moving 10x to the left we get

    => 9x2 – 10x + 2 = 0

    Comparing with general form of equation

    => a = 9, b = -10, c=2;

    Substituting into the discriminant formula, we get

    => (-10)2 – 4(9)(2)

    => 100 – 72

    => 28

    So, the discriminant of 9x2 + 2 = 10x is 28

    • This reply was modified 1 year, 7 months ago by ProtonsTalk.
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