Question

i need to multiply this

Answer 1

\[(5-i \sqrt{3})^{2}\]

Answer 2

help?

Answer 3

Write out ALL the terms when you square that binomial for me...

Answer 4

\[25-5i \sqrt{3}-5i \sqrt{3}+(i \sqrt{3}*i \sqrt{3})\]

Answer 5

25 - 2*i*sqrt(3) + (i)^2*3, where i^2=-1

Answer 6

Now use the fact that i*i = -1 and that \(\sqrt 3 \cdot \sqrt 3 = 3 \) and simplify. Don't forget to combine the two middle terms also.

Answer 7

thanks