Question

Write the rationalising factor of
$\sqrt{7} + 5$
​

Answer 1

Step-by-step explanation:

As givne

7

+

5

7

−

5

Now multiplying and divide by

7

−

5

=

7

+

5

7

−

5

×

7

−

5

7

−

5

=

(

7

)

2

−(

5

)

2

(

7

−

5

)

2

=

7−5

7+5−2×

7

×

5

=

2

12−2

35

=6−

35

Answer 2

Answer:

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