How do you solve (log_2(2x-3) / log_2(x)) - log_x(x+6) + (1/log_ (x+2)(x)) = 1?

1 Answer
Mar 6, 2016

x^3+8x^2+10x+3=0

Explanation:

(log_2(2x-3)/log_2 x)-log_x(x+6)+(1/log_(x+2) x)=1
log_x(x+6)=(log_2 (x+6))/(log_2x)
log_(x+2) x=(log_2 x)/(log_2(x+2))
(log_2(2x-3)/log_2 x)-log_2(x+6)/(log_2 x)+log_2(x+2)/log_2 x=1
(log_2(2x-3)-log_2(x+6)+log_2(x+2))/(log_2 x)=1
log_2(2x-3)-color(red)(log_2(x+6)+log_2(x+2))=log_2 x
color(green)(log_2(2x-3)-log_2 (x+6)*(x+2))=log_2 x
log_2 ((2x-3)/((x+6)(x+2)))=log_2 x
(2x-3)/((x+6)(x+2))=x
x(x^2+2x+6x+12)=2x-3
x^3+2x^2+6x^2+12x-2x+3=0
x^3+8x^2+10x+3=0