Question

resuelve por fórmula general las siguientes ecuaciones

Answer 1

Explicación paso a paso:

Fórmula General: x = ( -b ± -/(b² - 4ac) )/(2a)

b) 2x + x = 0,

3x = 0 --> x = 0

c) x² + 6x + 8 = 0

a = 1, b = 6, c = 8

x = ( -6 ± -/(36 - 32) )/2

x = -3 ± 1

x_1 = -3 + 1 y x_2 = -3 - 1

x_1 = -2 y x_2 = -4

e) x² - 4x = 0

a = 1, b = -4, c = 0

x = (4 ± -/16 )/2

x = 2 ± 2

x_1 = 4 y x_2 = 0

f) x² + 5x + 6 = 0

a = 1, b = 5, c = 6

x = (-5 ± -/(25 - 24) )/2

x = -5/2 ± 1/2

x_1 = -2 y x_2 = -3