Question

Simplify (sqrt5 -2i)^2

Answer 1

uh

Answer 2

What are we solving? For i? Can we see a screen shot of the problem?

Answer 3

\[(\sqrt{5}-2i)^2\]

Answer 4

I should have said simplify I think, my mistake.

Answer 5

\[\left( \sqrt{5}-2 \iota \right)^2=5+4 \iota ^2-4\sqrt{5} \iota =5-4-4\sqrt{5}\iota =1-4 \sqrt{5} \iota \]

Answer 6

Ah okay, I'll look over that. Thank you!