Question

simplify the following expression ​

Answer 1

Answer:

7+5-2√35

Step-by-step explanation:

7+5-2√35 is the answer

Answer 2

$( { \sqrt{7} - \sqrt{5} })^{2} \\ = ( { \sqrt{7} })^{2} - 2. \sqrt{7} . \sqrt{5} + ({ \sqrt{5} })^{2} \\ = 7 - 2 \sqrt{35} + 5 \\ = 12 - 2 \sqrt{35}$