gpt log

[candynl]

gpt
1) log(2)(x^2 +x+1) +log(2)(x^2-x+1) = log(2)(x^4 +x^2 +1) +log(2)(x^4 -x^2 +1)
2) log(27)(x^2 -5x +6)^3 =1/2.log(căn 3)[(x-3)/2] +log(9)(x-3)^2
3) 2^log(5)(x+3) =x
4) log(2)( 1+ căn x) =log(3)x

 

[ngoisaouocmo]

2)