Question

√2+√5+√7 by √2+√5-√7​

Answer 1

Answer:

11.83

Step-by-step explanation:

(a+b+c) (a+b-c) = a²+b²-c²+2ab

${ \sqrt{2} }^{2} + { \sqrt{5} }^{2} - { \sqrt{7} }^{2} + 2 \sqrt{5 \times \sqrt{7} }$

2 +5 - 7 +2xroot xroot7 =11.83