rationalizing a denominator

[cartier rick]

Ive been trying to answer this question about rationalizing denominators for a week someone please help I have inserted an image of the equation

my attempts are in the pic

 

[Otis]

… trying to answer this question about rationalizing denominators … my attempts are in the pic

Hi cartier rick. I think you've misunderstood the form of the answer. They haven't asked you to actually multiply the numerator and denominator, in those algebraic fractions. They just want you to state what expression you would use on top and bottom, to rationalize the denominator.

For example, in #11 you rationalized the denominator by multiplying top and bottom by the expression √5 + x. So the answer they want is that expression:

√5 + x

?

 

[JeffM]

In #10. you have not only misunderstood the question, but have supplied the wrong answer to the question that you thought was posed.

 

[Dr.Peterson]

In #10. you have not only misunderstood the question, but have supplied the wrong answer to the question that you thought was posed.

It looks good to me (if the problem had asked to simplify).

 

[JeffM]

It looks good to me (if the problem had asked to simplify).

You are correct. I just did the rationalization and did not then look for an opportunity to simplify. Off to the corner for 9 minutes.