quien me resuelve esta ecuacion
2
x + 2x - 8 = 0
Respuestas a la pregunta
Desarrollamos:
2x + 2x - 8 = 0
4x - 8 = 0
4x = 0 + 8
4x = 8
x = 8 / 4
x = 2
Comprobamos:
2x + 2x - 8 = 0
2(2) + 2(2) - 8 = 0
4 + 4 - 8 = 0
8 - 8 = 0
0 = 0
hola¡¡
Respuesta: bien empecemos:
+ 2x - 8 = 0
a = 1 x = - b ±
b = 2 ---------------------------------
c = - 8 2a
x = - {2} ±
------------------------------------
2{1}
x = - 2 ±
------------------------
2
x = - ±
-------------
2
x = - 2 ± 6
-------------
2
x, = -2 + 6 4
-------------- x, = ------ x, = 2
2 2
= - 2 - 6 -8
--------------- = ------- = 4
2 2