Question

$\sqrt{7 + \sqrt{4 = } }$
$\sqrt{11 + \sqrt{25 = } }$
$\sqrt{7 + 2. \sqrt{25 - \sqrt{16 = } } }$
$\sqrt{5 + \sqrt{4 = } }$
me ajuda por favor ​

Answer 1

$\sqrt{7 + \sqrt{4} } \\ \sqrt{7 + 2 } = \sqrt{9} = \boxed{\boxed{3}}$

$\sqrt{11 + \sqrt{25} } \\ \sqrt{11 + 5} = \sqrt{16} =\boxed{\boxed{ 4}}$

$\sqrt{7 + 2. \sqrt{25 - \sqrt{16} } } \\ \sqrt{7 + 2. \sqrt{25 - 4} } \\ \boxed{\boxed{ \sqrt{7 +2 \sqrt{21} } }}$

$\sqrt{5 + \sqrt{4} } \\ \sqrt{5 + 2} = \boxed{\boxed{\sqrt{7} }}$

 ✿ ~Sah