# Math

posted by .

Hi ya!
So I got a question like when I'm rationalzing a denomenator in order to get simple radical form I really don't know what to do

for example this problem

(6^(2^-1)-3^(2^-1))^-1

ok so I know your trying to get it so it's a perfect sqaure right so I can legally write this

(6^(2^-1)-3^(2^-1))^-1 A = (6 - 3)^-1 = 3^-1

or a simplified formula

(6^(2^-1)-3^(2^-1))^-1 A = 3^-1
and solve for A were A equals the value needed to get the perfect square 6-3 or simply 3 right so I solved

A=3^-1(6^(2^-1)-3^(2^-1))

and I get some value which is equal to
(6^(2^-1)+3^(2^-1))^-1
but where s the proof that this is correct using that formula all you get is some number and I have no idea how you get this answer I know you just make the negetive positive but what allows you to do that?????

## Similar Questions

4. ### math,correction

Find the area of the rectangle shown in the figure. length = radical (3) + radical (5) width = radical (3) + radical (5) My answer: a= 8 + 2 radical (15) or a = 15.75 agree, you seem to be able to do these should i leave it as the …
5. ### math , help,algebra

i am up to this point in my problem but i don't know what to do next with it can someone show me. Directions: Simplify by combining like terms x radical(18) minus 3radical(8x^2) these are the steps that i've done so far. = x radical …
6. ### radical equation - no solution right?

radical sign (w + 5) = 2 In all my problems there are a letter variable on the end example: radical sign (-u + 30) = u I then square both sides, drop the radical sign then (u+6)(u-5)=0 then check to see if they are both true I guess …
7. ### Algebra 2

so i got a question and would like to know if i did this right For problems 1 through 38, transform the given expression to simple radical form. You can check your answer by evaluating it and the original expression by calculator. …
8. ### Calc I

y = (x^2 -4)/(x^2 - x -12) dy/dx of numerator I got 2x dy/dx of denomenator I got 2x - 1 dy/dx of y I got (x^2 - 16x -4)/((x-4)^2(x+3)^2) setting numerator to zero and solving got 8 +/- sqrt(65) with the critical value being the + …
9. ### Math

The area of one of the faces of the cube below is x^2+2x+1 cm^2. Find an expression in mixed radical form for the length of the interior design. My Work: Step 1: a^2 + b^2 = c^2 =(x-1)(x-1) x-1 equals to all the sides of the cube Step …
10. ### Math

Simpilfy the radical expression by rationalzing the denoiminator?

More Similar Questions