Wednesday

April 16, 2014

April 16, 2014

Posted by **peter** on Tuesday, October 26, 2010 at 7:19am.

How would I rationalize this

I think it would be -

Multiply both sides by 11-root5

then use the foil method on the denominator to give you 55-5root5/121+5root11-5root11-5

the 2 roots would cancel out giving you 55-5root5/12-5

so would the answer be 55-5root5/7

thanks in advance

- math -
**Reiny**, Tuesday, October 26, 2010 at 8:26amyou have a typo and then transcribed that error

should have been

(55 - 5√5)/(121-5)

=(55 - 5√5)/116

**Related Questions**

Algebra - -9+3w/11 divided by 25w-75/121 Do I need a Common denominator? Would ...

Algebra - multiply(square root5 +1)(8 square root5 +1)

math - kelly solved the following problem on her recent math test 121/11+4*8=120...

algebra 2 - evaluate if possible 1. square root -121 A not a real number 2. ...

algebra1 - I have no idea how tp simplify 2 sq.root20-3 sq.root7-2 sq.root5+4 sq...

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

math - 1/x + 1/x+2 =11/60 What's the first step to find value of x? Multiply ...

math - Q.1)Find hcf and lcm of the following using fundamntal theorem of ...

math - how do I solve this? I know it's common math, but I cannot remember how...

Algebra II - Rationalize the denominator and simplify... radical 44x^2/radical ...