Question

Solve the following
(√4+√5)^2

Answer 1

$( { \sqrt{4} + \sqrt{5} ) }^{2}$

$( { \sqrt{4} )}^{2} + ( { \sqrt{5}) }^{2} + 2 \times \sqrt{4} \times \sqrt{5}$

$4 + 5 + 2 \sqrt{20}$

$9 + 2 \sqrt{20}$

$9 + 4 \sqrt{5}$

please mark as branliest answer

Answer 2

Answer:

(root4 + root5)² = (root4)² + (root5)²+ 2×root4×root

= 4 + 5 + 2root20

= 9 + 2root20