Question

2²x-12.2x+32=0 ecuaciones exponenciales

Answer 1

Respuesta: x = 3 ; x = 2

Explicación paso a paso:

(2×)2 - 12.2× + 32 = 0

2× = y

y2 - 12.y + 32 = 0

(y - 8) (y - 4) = 0

y - 8 = 0 y - 4 = 0

y1 = 8 y2 = 4

2× = y1 2× = y2

2× = 8 2× = 4

2× = 2³ 2× = 2१

X = 3 X = 2