Ответ Автор - ramina20061 |3х+1|+2³=8. |9х+2|-3³=(-3)³ 3х+1+8=8. 9х+2-27=-273х+1=8-8. 9х+2=-27+273х+1=0. 9х+2=03х=0-1. 9х=0-23х=-1. 9х=-2 х=-1/3. х=-2/9