Question

When you have no clue what you’re doing

Answer 1

25y^2 -20iy + 4i^2

Explanation:

Theres an acronymn called Foil (first, ouside, inside, last) for expanding an expression like that

For this expression:

= (5y - 2i) (5y - 2i)

= 25y^2 - 10iy - 10iy + 4i^2

= 25y^2 -20iy + 4i^2

This is assuming that "i" is not the imaginary number "i"