Elizabalaispio2825viz
Answered

13. What is the value of the discriminant of the equation x2 + 3x + 1 = 0?
A. - 11
B. - 1
C. 1
D. 5​

Sagot :

Acireh30viz

Answer:

D. 5

Step-by-step explanation:

Discriminant formula

  • b²- 4ac

Solving

  • x² + 3x + 1 = 0
  • a = 1 b = 3 c = 1
  • 3²- 4 (1) (1)
  • 9 - 4
  • 5

Answer:

         D. 5

Explanation:

  • Use the values of a, b, and c to find the discriminant.

See the image to show the graph.

Solution:

                                                     [tex]x^{2} + 3x + 1 = 0 \\a = 1 b = 3 c = 1 \\3^{2}- 4 (1) (1) \\9 - 4 \\5[/tex]                                                      

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