2010013402

SubArea: 
Powers and Roots of Complex Numbers
Level: 
B
Project ID: 
2010013402
Source Problem: 
1003109305
Accepted: 
0
Clonable: 
1
Easy: 
0
Solve the following equation in the set of complex numbers. (Solve the equation by substitution.) \[ (3x + 2)^4 - 81 = 0 \]
\( \left\{-\frac53,\frac13,-\frac23+\mathrm{i} ,-\frac23-\mathrm{i} \right\} \)
\( \left\{-\frac53,\frac13,\frac23+\mathrm{i} ,\frac23-\mathrm{i} \right\} \)
\( \left\{\frac53,-\frac13,-\frac23+\mathrm{i} ,-\frac23-\mathrm{i} \right\} \)
\( \left\{\frac53,-\frac13,\frac23+\mathrm{i} ,\frac23-\mathrm{i} \right\} \)