Răspuns :
(2+i)(3-2i) - (1-2i)(2-i) = (6-4i+3i-2i²) - (2-i-4i+2i²) = 6-i+2 - (2-5i-2) = 8-i+5i = 8+4i
Răspuns:
(2 + i)(3 - 2i) - (1 - i) = 2*3+2*(-2i)+i*3+i*(-2i)-1+i = 6-4i+3i-2i la a doua-1+ i= -2i la a 2 a-2i+6=-2(i la a doua+i-3)
(2+i)(3-2i) - (1-2i)(2-i) = (6-4i+3i-2i²) - (2-i-4i+2i²) = 6-i+2 - (2-5i-2) = 8-i+5i = 8+4i
Răspuns:
(2 + i)(3 - 2i) - (1 - i) = 2*3+2*(-2i)+i*3+i*(-2i)-1+i = 6-4i+3i-2i la a doua-1+ i= -2i la a 2 a-2i+6=-2(i la a doua+i-3)