Mathematic Problems
logx3+log3x=logx3+log3x+12
1log3x+log3x=1log3x12+log3x12+12
1log3x+log3x=112log3x+12log3x+12
log3x=t
1t+t=2t+12t+12 /×2t
2+2t2=4-t2+t
2+2t2-4+t2-t=0
t2-t-2=0
t1,2=1±1+82
t1,2=1±32
t1=2 t2=-1
log3x=2
x=32x=9
log3x=-1
x=3-1x=13
x=3-1x=13