Question

the value of (√5+√2) power 2 A)7+2√5 B) 1+5√2 C) 7+ 2√10 D) 7-2√10​

Answer 1

Step-by-step explanation:

$(\sqrt{5} +\sqrt{2} )^{2}$ (Using identity: (a+b)^2 = a^2 + b^2 + 2ab)

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