78.1k views
4 votes
Determine the discriminant, and then state the nature of the solutions. 3x^2+5x-8=0The discriminant tells us there is Answer

Determine the discriminant, and then state the nature of the solutions. 3x^2+5x-8=0The-example-1
User Vali
by
5.5k points

1 Answer

3 votes
Answer:

The discriminant is one rational solution:

121

Step-by-step explanation:

Given the quadratic equation:


3x^2+5x-8=0

Comparing this to:


ax^2+bx+c=0

We see that

a = 3, b = 5, and c = -8

The discriminant is given as:


\begin{gathered} D=b^2-4ac \\ =5^2-4(3)(-8) \\ =25+96 \\ =121 \end{gathered}

The discriminant is one rational solution: 121

User Gijs Overvliet
by
5.9k points