Friday

March 6, 2015

March 6, 2015

Posted by **-Untamed-** on Monday, October 3, 2011 at 9:40pm.

- Calculus -
**Steve**, Tuesday, October 4, 2011 at 8:56amyes, because (√n)² = n

so, multiplying the root by itself gets rid of the root.

If the denominator is not just a root, but something like √m + n, then you need to multiply by √m - n, since

(√m + n)(√m - n) = m - n²

also, you sometimes have to use

(√m + √n)(√m - √n) = m - n

**Answer this Question**

**Related Questions**

Algebra - Rationalize each expression by building perfect nth root factors for ...

College Algebra - I need some help with a handful of questions. I need to see ...

College Algebra - I need some help with a handful of questions. I need to see ...

College Algebra help please - I need some help with a handful of questions. I ...

Math help plz ASAP. - Rationalize each denominator. 6 + square root of 2 ...

Algebra - I need to rationalize the denominator of 2/3 square root of five, (...

math - Simplify the radical expression by rationalizing the denominator: 2(...

math - Simplify th radical expression by rationalizing the denominator: 2(square...

Algebra 2 - simplify the radical expression by rationalizing the denominator. 4...

Calculus/College Algebra - I'm so lost. We're working on limits for this ...