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17 May, 05:43

Use the discriminant to determine the nature of the roots of the following equation.

y2 - 5y - 3 = 0

Double root

real and rational root

real and irrational root

non-real root

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Answers (1)
  1. 17 May, 05:45
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    Y^2-5y-3=0

    In this equation, a=1, b=-5, c=-3

    So discriminant d = b^2-4ac

    d = (-5) ^2-4 (1) (-3)

    d=25+12

    d=37

    Since d>0 then there exists two different real roots
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