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Posted by **anonymous** on Thursday, September 9, 2010 at 3:25pm.

please can someone help me on how to get the answer 2+square root 5

- maths -
**bobpursley**, Thursday, September 9, 2010 at 3:39pm(5+2sqrt5)/sqrt5 * (sqrt5/sqrt5)=

(2*sqrt5*sqrt5+5sqrt5)/(sqrt5*sqrt5)=

(2*5+5sqrt5)/5=2+sqrt5

- maths -
**anonymous**, Thursday, September 9, 2010 at 3:58pmbut how do you get 2*5+5squared root 5 to become 2+sqrt5 ?

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