SOLUTION: Simplify: (5-i squrt3)(5+i sqrt3) Thank you, thank you, thank you! You guys are life savers! Carolyn:)

Algebra ->  Square-cubic-other-roots -> SOLUTION: Simplify: (5-i squrt3)(5+i sqrt3) Thank you, thank you, thank you! You guys are life savers! Carolyn:)      Log On


   

Question 50648: Simplify:
(5-i squrt3)(5+i sqrt3)
Thank you, thank you, thank you! You guys are life savers!
Carolyn:)
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
%285-i%2Asqrt%283%29%29%2A%285%2Bi%2Asqrt%283%29%29
Just FOIL it out, and the middle term will subtract out:
25+-+i%5E2%2A3.

Remember that i^2 = -1, so
25+%2B3
28

R^2 at SCC