Đáp án:=>(3x-1+3x-1).(3x-1-3x+2)
=>(6x-2).1
6x=2
x=2/6=1/3
vậy x=1/3
Đáp án:
Giải thích các bước giải:
=>(3x-1+3x-1).(3x-1-3+ 2)
=>6x=2
=> x=2/6=1/3
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