khuram Posted May 24, 2009 Share Posted May 24, 2009 answer is 7 + 2√56 + 8 how came 2√56 ??? Quote Link to comment Share on other sites More sharing options...
Md. Minuddin Posted May 24, 2009 Share Posted May 24, 2009 answer is 7 + 2√56 + 8 how came 2√56 ??? (a+b)2=a2+2ab+b2 So, (√7+√8)2= (√7)2+2√7*√8+(√8)2=7+2√56+8 Quote Link to comment Share on other sites More sharing options...
khuram Posted May 24, 2009 Author Share Posted May 24, 2009 thanks Md.. but is there any other way to solve.. Quote Link to comment Share on other sites More sharing options...
Monster Matty Posted May 24, 2009 Share Posted May 24, 2009 I think that is the easiest way to do it. Quote Link to comment Share on other sites More sharing options...
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