Respuestas
Respuesta:
Explicación paso a paso:
a)log2(x-1) = -1 b) log1/2(x-2) = -1 c) (3)o = x+5 d) (5/2)2 = x-3/4
(2)-1 = x-1 (1/2)-1 = (x-2) 1 = x+5 25/4 = 4x-3/4
(1/2) = x-1 2 = x-2 -4 = x 25 = 4x-3
1 = 2x-2 4 = x 28 = 4x
3 = 2x x = 7
3/2 = x
e) log3(x+4)(x-4) = 2 f) log2(2x+2/2-x) = 2 g) log4(x+4)3-log4(x+4)=2
(3)2= 9 (al cuadrado) 4 = 2x+2/2-x (x+4)3 / x+4 = 2
9= (x+4)(x-4) 4(2-x) = 2x+2 (x+4)" = 2
9 = x" -16 8-4x = 2x+2 x"+8x-14 = 0
x" = 25 6 = 6x
x = 5 x=1