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February 1, 2015

February 1, 2015

Posted by **Jo** on Monday, July 12, 2010 at 6:35am.

Calculate the discriminant of the quadratic expression

2x 2 + 5x − 2.

- Maths -
**Reiny**, Monday, July 12, 2010 at 6:45amUsually the discriminant is associated with a quadratic equation.

I will assume you meant 2x^2 + 5x - 2 = 0

Discriminant = b^2 - 4ac

= 25 - 4(2)(-2)

= 41

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