Question:
What is the discriminant of the quadratic equatic x² + 3x - 4 = 0?
Answer:
C. 25
Step-by-step explanation:
Formula:
[tex] \boxed{ \large\sf{}b {}^{2} - 4ac } \\ [/tex]
a = 1 ; b = 3 ; c = - 4
[tex] \sf{} = {3}^{2} - 4(1)( - 4) \\ \\ \sf{} = 9 + 16 \\ \\ \sf{} = 25 \\ \\ \\ \\ \\ [/tex]
[tex]\tiny \boxed{ \begin{array}{} \frown \frown \\ \smile \end{array}}[/tex]
