SOLUTION: I really need help with these two problems. Thank you in advance. Simplify and rationalize the denominator where necessary. a) {{{ sqrt( 90 ) / sqrt( 3 ) }}} b) {{{ 15/ 3 +

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Question 291203: I really need help with these two problems. Thank you in advance.
Simplify and rationalize the denominator where necessary.
a)
b) (Note: the + is supposed to be part of the denominator but I couldn't get it to go under the line; hope your still able to figure it out.)

Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
Simplify and rationalize the denominator where necessary.
a)
=
=
-------------------
b)
Multiply NUM and DEN by the conjugate of the DEN 3 - sqrt(5)
=
=

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