3x+2+3x=810
=>3x(32+1)=810
=>3x.10=810
=>3x=81=34
=>x=4
Vậy x=4
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3x+2+3x=810
=>3x(32+1)=810
=>3x.10=810
=>3x=81=34
=>x=4
Vậy x=4
3^x+3^x+2=810
Tìm x:
3^x+3^x+2=810
3^x+2+x^3+3+3^x+4+3^x+5=[(3^2018+3^2017):3^2010].810
tim x: 3x+2+3x=810
tìm x:
3x+2+3x+3=810
tìm x biết: 3x+3x+2=810
Tìm x
3x+3x+2=810
2 . 3x = 162
3x + 3x + 2 =810
3^x+2 + 3 x = 810
tìm x