Thursday

July 24, 2014

July 24, 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 - multiply(square root5 +1)(8 square root5 +1)

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

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

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

math,help - I need help with thisone solve: ((x)/(5x+10))+ ((x-3)/(x+2)) = (7)/(...

Maths - Can you please help explain how to get the answer to 3/x = 2/5 thanks a ...

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

Math - I need help multiplying the fractions out. The question is... x/3 + y/2...

math,help - okay Directions: find the following squares. Problem: ((w)-(1)/(4))^...

Algebra - 89. Solve for x in the equation: 6/7x - 6 = -2 I posted this before, ...