Answer:

Question:

What is the discriminant of the quadratic equatic x² + 3x - 4 = 0?

Answer:

C. 25

Step-by-step explanation:

Formula:

\begin{gathered} \boxed{ \large\sf{}b {}^{2} - 4ac } \\ \end{gathered}

b

2

−4ac

a = 1 ; b = 3 ; c = - 4

\begin{gathered} \sf{} = {3}^{2} - 4(1)( - 4) \\ \\ \sf{} = 9 + 16 \\ \\ \sf{} = 25 \\ \\ \\ \\ \\ \end{gathered}

=3

2

−4(1)(−4)

=9+16

=25

\begin{gathered}\tiny \boxed{ \begin{array}{} \frown \frown \\ \smile \end{array}}\end{gathered}

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