We have to find the square of (4+3i)
(4+3i)^2
=> (4+3i)(4+3i)
=> 4*4 + 4*3*i + 4*3*i + 3*i*3*i
=> 16 + 12i + 12i + 9i^2
i^2 = -1
=> 16 + 24i - 9
=> 7 + 24i
The required square is 7 + 24i
We have to find the square of (4+3i)
(4+3i)^2
=> (4+3i)(4+3i)
=> 4*4 + 4*3*i + 4*3*i + 3*i*3*i
=> 16 + 12i + 12i + 9i^2
i^2 = -1
=> 16 + 24i - 9
=> 7 + 24i
The required square is 7 + 24i