Question

The value of ( under root 5+under root 2)raise to the power 2

Answer 1

Answer:

$7 + 2\sqrt{10}$

Step-by-step explanation:

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

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

putting the value of a & b in the equation obtained

$= (\sqrt{5} )^{2} + (\sqrt{2} )^{2} + 2(\sqrt{5})(\sqrt{2} )\\\\= 5 + 2 + 2(\sqrt{10})\\\\= 7 + 2\sqrt{10}$