29.5k views
3 votes
-2x^2+5x-4=0 , find the discriminant

User Akzy
by
8.1k points

1 Answer

6 votes

Answer:

The discriminant is -7

Explanation:

The discriminant of a quadratic function/equation(ax^2+bx+c = 0) is calculated as:


b^2 -4ac

Here

b is the co-efficient of x

a is the co-efficient of x^2

and c is the constant

Given equation is:


-2x^2+5x-4=0

Here

a = -2

b = 5

c = -4

Putting the values in the formula for discriminant


= b^2 - 4ac\\= (5)^2 - 4(-2)(-4)\\= 25 - 32\\=-7

As the discriminant is negative, the equation has no real solution.

Hence,

The discriminant is -7

User Jozcar
by
7.1k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories