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(2+i )la puterea a 2-a x (3-2i )-(2-i)x(1-2i )

Răspuns :

(4+2i+1)(3-2i)-2+2i-4i-1=12+6i+3-8i-4-2i-2+2i-4i-1=8-6i=2(4-3i). cred ca asa e...