posted by Diane on .
sqrt r - sqrt s/ sqrt r + sqrt s =r sqrt r- sqrt rs +sqrt s/ r
can someone check this for me please.
Use parentheses to clarify whether you mean
(sqrt r - sqrt s)/ (sqrt r + sqrt s)
sqrt r - (sqrt s/ sqrt r) + sqrt s
(sqrt r- sqrt s)/ sqrt r+ sqrt s)= r sqrt r - sqrt rs + sqrt s/ r
Is the answer I got correct.
Multiply numerator and denominator by (sqrt r - sqrt s) to get rid of some sqrt signs. The new denominator becomes r-s.
(sqrt r- sqrt s)/(sqrt r+ sqrt s)=
[r - 2 sqrt(rs)+ s]/(r -s)
Your answer is not correct. If you show your work, perhaps we can show you where a mistake was made.
Thanks, This is my first time working on Algebra.