112k views
2 votes
Compute the value of the discrimination and give the number

Compute the value of the discrimination and give the number-example-1
User Elton Wang
by
7.4k points

1 Answer

4 votes

In order to calculate the discriminant, let's compare the given equation with the standard form of a quadratic equation, then we use the coefficients in the formula for the discriminant:


\begin{gathered} y=ax^2+bx+c \\ -2x^2+9x-2=0 \\ a=-2,b=9,c=-2 \\ \\ \Delta=b^2-4ac \\ \Delta=9^2-4\cdot(-2)(-2) \\ \Delta=81-16 \\ \Delta=65 \end{gathered}

Since the discriminant is greater than 0, that means the quadratic equation has 2 real solutions.

User Marc Seeger
by
8.6k 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