Question

add root 7- root 11 and root 5- root 11 + root 13​

Answer 1

√7 - √11 + (√5.- √11 + √13)

= √7 - √11 + √5 + √11 + √13

Here - √11 and √11 are cancelled as we know that a - a = 0

= √7 + √5 + √13

Answer 2

Add: √7 - √11 and√5 - √11 + √13