Question

solve : ra-2/a-4

Answer 1

This is a bit incomplete I'm afraid.
There is no equation to solve.

Answer 2

This is called an expression. What would you like to do with the expression?

Answer 3

Are there some numbers for a and r to which you would like to evaluate the expression?

Answer 4

rationalize the denominator

Answer 5

no the r=radical

Answer 6

\[\sqrt{\frac{a-2}{a-4}}\] ?

Answer 7

yesss sry first time :$

Answer 8

wait no the second

Answer 9

\[\frac{a-2}{\sqrt{a-4}} ?\]

Answer 10

denominator has no radical and the 2 on the numerator is seperate

Answer 11

wait ill draw

Answer 12

Ok that might be better
Sorry.

Answer 13

rationalize the denominator, i think i miss a step, i dont know how to factor out the a from the neumerator, anyway please help with the steps

Answer 14

Well the thing is there is nothing to rationalize in the denominator
Do you mean rationalize the numerator because that is where the radical is at

Answer 15

wow lool sry so many questions ive done this is my first num, yes sry num not deno :$

Answer 16

Its cool! :)
\[\frac{\sqrt{a}-2}{a-4} \cdot \frac{\sqrt{a}+2}{\sqrt{a}+2} \text{ always multiply top and bottom by the conjugate }\]
The conjugate is just the operation switches

Answer 17

yupp

Answer 18

Like what I mean is the conjugate of a+b is a-b
The conjugate of a-b is a+b
The conjugate of -a+b is -a-b
The conjugate of -a-b is -a+b