Practice problem
Evaluate: (1+2i)(3+4i)(1+2i)(3+4i)(1+2i)(3+4i)
11−2i11-2i11−2i
11+10i11+10i11+10i
−5−2i-5-2i−5−2i
−5+10i-5+10i−5+10i
Type a concept, like “slope” or “photosynthesis”.
