Question

(5+3i)²ko a+ib ke ruup mai vaykt kijiye

Answer 1

(5+3i)²

(a+b)²=a²+b²+2ab

(5)²+(3i)²+2×5×3i

25+9i²+30i

i²=-1

25+(9×-1)+30i

25-9+30i

$\small\boxed{16+30i}$