Find the square of `(a+40i)+sqrt(9-40sqrt(-i))`

Explanation

`=(a+40i+sqrt(9-40i))^2`
`=a^2+1600i^2+9-40i+80"ai " +80isqrt(9-40i)+2asqrt(9-40i)`
`=a^2-1600+9-40i+80 "ai" +2sqrt(9-40i)(a+40i)`
`=a^2-1591-40i+80"ai" +2sqrt(9-40i)(a+40i)`