Question

let Z 1 = 5 + 12 i , Z 2 = 3 + 4 i . Find ( Z 1 ) 2 − ( Z 2 ) 2 in standard form

Answer 1

(5+12i)²-(3+4i)²=25-144+120i-(9-14+24i)=-119+120i+5-24i=124+96i