Question

Calcula "n", ayuda por favor ​

Answer 1

Respuesta:

n = 2

Explicación paso a paso:

discriminante = b² - 4ac

b² - 4ac = 9

a = 1

b = -5

c = n +2

(-5)² - 4(1) ( n+2) = 9

25 - 4 (n + 2) = 9

- 4 (n +2) = 9 - 25

- 4 (n +2) = - 16

4 (n +2) = 16

4n + 8 = 16

4n = 16 - 8

4n = 8

n = 8/4

n = 2