Ответ:
-15,5+|х|+4,75=-3
-10,75+|х|=-3
|х|=-3+10,75
|х|=7,75
Х1=7,75 Х2=-7,75
<span>(1-х)(х+1)+(х-1)</span>
1/2*log12 (14)*1/2*1/log12 (14) = 1/4