/ 2 \ |4*x + 3| log|--------| /2*x + 3 \ | 2 | log|-------*x| \ 4*x / log(2*x + 1) \ 2 / ------------- - ------------ <= -------------- log(1/6) log(1/6) log(1/6)
log((4*x^2 + 3)/((4*x^2)))/log(1/6) - log(2*x + 1)/log(1/6) <= log(x*((2*x + 3)/2))/log(1/6)