Thursday

November 27, 2014

November 27, 2014

Posted by **Maria** on Friday, May 4, 2012 at 9:18pm.

The sqrt of x - the sqrt of y, over the sqrt of x + the sqrt of y. I need to simplify and use radicals as needed. I obviously do but what...?? Please assist.

Thank you.

- Algebra -
**David Q/R**, Saturday, May 5, 2012 at 2:57pmI'm not quite sure I understand the second question, but I'll take a guess. You want to simplify

{sqrt(x) - sqrt(y)} / {sqrt(x) + sqrt(y)}.

Multiply the top and bottom of this expression by {sqrt(x) - sqrt(y)}. The numerator will then be {x - 2.sqrt(xy) + y}, and the denominator will be (x - y). You've now only got square roots in the numerator. Is that what you need?

**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 ...

Inequality - When I solve the inquality 2x^2 - 6 < 0, I get x < + or - ...

Cody - Write the following with rational, positive exponents. a. sqrt of 8 = 8^1...

math calculus please help! - l = lim as x approaches 0 of x/(the square root of...

math,algebra,help - Directions are simplify by combining like terms. x radiacal ...

Calculus - Please look at my work below: Solve the initial-value problem. y'' + ...

Mathematics - sqrt 6 * sqrt 8 also sqrt 7 * sqrt 5 6.92820323 and 5.916079783 So...

Math - How would I do: sqrt32a^8b + sqrt50a^16b Are the exponents 8b and 16b or ...

Math - How do you find a square root of a number that's not a perfect square? I'...