Question

4.
Rationalising factor of
√x-y is​

Answer 1

The rationalizing factor of √x-y is √x+y

Answer 2

Answer:

Here is your answer mate

We know that If the product of two surds is a rational number, then each factor is a rationalising factor of the other.

Now multiply

xy

​

to itself to make

xy

​

a rational number as shown below:

(

xy

​

)×(

xy

​

)=xy

Hence,

xy

​

is the rationalising factor of

xy

​

.

Step-by-step explanation:

Hope it's help you

Mark me as brainliest