Find the discriminant of each of the following equations:

(x – 1)(2x – 1) = 0

Given: (x – 1)(2x – 1) = 0

2x^{2} – 3x + 1 = 0

Comparing with standard quadratic equation ax^{2} + bx + c = 0

a = , b = , c = – 1

Discriminant D = b^{2} – 4ac

= (– 3)^{2} – 4.2.1

= 9 – 8 = 1

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