SOLUTION: how do i solve (sqrt7 plus 5sqrt2)squared?

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Question 275447: how do i solve (sqrt7 plus 5sqrt2)squared?
Answer by bobdabuildr(27) About Me  (Show Source):
You can put this solution on YOUR website!
Write the problem out to look more like this %28sqrt%287%29%29%5E2+%2B+%285%29%5E2%28sqrt%282%29%29%5E2
Now what is %28sqrt%287%29%29%5E2? why sqrt%2849%29
and squared is 25 and the %28sqrt%282%29%29%5E2 is sqrt%284%29 which is equal to 2.
Now you have and equation which look like 7+25*2. multiple and add to get an answer of 57