SOLUTION: Okay I have two questions (5 +2 rad 3) squared. And another question is 5 over 2- rad 5. PLEASE help!!! I have a huge test tomorrow!!!!

Question 301198: Okay I have two questions (5 +2 rad 3) squared. And another question is 5 over 2- rad 5. PLEASE help!!! I have a huge test tomorrow!!!!
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Okay I have two questions (5 +2 rad 3) squared.

Multiply it same as any binomial squared:
=
=
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And another question is 5 over 2- rad 5

You didn't say, but usually the object is to get the radicals out of the denominator.
Multiply NUM and DEN by the conjugate of the DEN (2 + sqrt(5))
=
=
=

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