Posted by **Diane** on Saturday, July 5, 2008 at 9:16am.

sqrt r - sqrt s/ sqrt r + sqrt s =r sqrt r- sqrt rs +sqrt s/ r

can someone check this for me please.

- Algebra 1 -
**drwls**, Saturday, July 5, 2008 at 9:36am
Use parentheses to clarify whether you mean

(sqrt r - sqrt s)/ (sqrt r + sqrt s)

or

sqrt r - (sqrt s/ sqrt r) + sqrt s

- Algebra 1 -
**Diane**, Saturday, July 5, 2008 at 9:46am
(sqrt r- sqrt s)/ sqrt r+ sqrt s)= r sqrt r - sqrt rs + sqrt s/ r

Is the answer I got correct.

- Algebra 1 -
**drwls**, Saturday, July 5, 2008 at 11:26am
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.

## Answer This Question

## Related Questions

- Math Help please!! - Could someone show me how to solve these problems step by ...
- Math(Roots) - sqrt(24) *I don't really get this stuff.Can somebody please help ...
- math,algebra,help - Directions are simplify by combining like terms. x radiacal ...
- Mathematics - sqrt 6 * sqrt 8 also sqrt 7 * sqrt 5 6.92820323 and 5.916079783 So...
- Math - How do you find a square root of a number that's not a perfect square? I'...
- Inequality - When I solve the inquality 2x^2 - 6 < 0, I get x < + or - ...
- math calculus please help! - l = lim as x approaches 0 of x/(the square root of...
- Calculus - Please look at my work below: Solve the initial-value problem. y'' + ...
- Math/Calculus - Solve the initial-value problem. Am I using the wrong value for ...
- Calculus check - Given f(x)=x^4(2x^2-15). On what interval(s) is the graph of f ...

More Related Questions