1003109305

SubArea: 
Powers and Roots of Complex Numbers
Level: 
B
Project ID: 
1003109305
Source Problem: 
2010013402
Accepted: 
1
Clonable: 
1
Easy: 
0
Solve the following equation in the set of complex numbers. (Solve the equation by substitution.) \[ (2x + 3)^4 - 256 = 0 \]
\( \left\{-\frac72,\frac12,-\frac32\pm2\mathrm{i} \right\} \)
\( \left\{-\frac72,\frac12,\frac32\pm2\mathrm{i} \right\} \)
\( \left\{\frac72,-\frac12,\frac32\pm2\mathrm{i} \right\} \)
\( \left\{\frac72,-\frac12,-\frac32\pm2\mathrm{i} \right\} \)