SOLUTION: Express in standard form: {{{ (sqrt( 5 )-i*sqrt( 2 ))(sqrt( 5 )+i*sqrt( 2 )) }}}

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: Express in standard form: {{{ (sqrt( 5 )-i*sqrt( 2 ))(sqrt( 5 )+i*sqrt( 2 )) }}}      Log On


   

Question 1114840: Express in standard form: +%28sqrt%28+5+%29-i%2Asqrt%28+2+%29%29%28sqrt%28+5+%29%2Bi%2Asqrt%28+2+%29%29+
Answer by ikleyn(52788) About Me  (Show Source):
You can put this solution on YOUR website!
.
= %28sqrt%285%29%29%5E2 - %28i%2Asqrt%282%29%29%5E2 = 5 +2 = 7.

Use i%5E2 = -1.