Question

(square root of 7 - square root of 11)^2

Answer 1

18 - 2 square root of 77

Answer 2

\[(\sqrt 7 -\sqrt {11})^2\]
Use the formula
\[(a-b)^2=a^2-2ab+b^2\]
\[(\sqrt 7 -\sqrt {11})^2=(\sqrt 7)^2- 2\times \sqrt 7 \sqrt{11} +(\sqrt {11})^2\]
\[(\sqrt 7 -\sqrt {11})^2=7-2 \times \sqrt {77}+11\]
Can you simplify now?

Answer 3

16*\[\sqrt{11}\]

Answer 4

@ngtts \[ 7 -( 2\times \sqrt {11} )+11\]
Now simplify it:)