Answers

2014-05-25T16:11:10+05:30
√5+√20+√45
=√5+√5×√4+√9×√5
=√5+√5×√2×√2+√3×√3×√5
=1√5+2√5+3√5
=6√5 (this step includes adding of the final product)

hope this will help u..
 
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2014-05-26T09:21:56+05:30
√5+√20+√45
=√5+√5×√4+√5+√9
=√5+√5×2+√5+3
=√5+2√5+3√5
=1√5+5√5
=6√5
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