Question

Simplify root 7 + root 2 the whole raise to 2

Answer 1

Answer:

$9 + 2 \sqrt{14}$

Step-by-step explanation:

Given : $(\sqrt{7}+\sqrt{2})^2$

To do : Simplify

Identity used : $(a+b)^{2} = a^2 + b^2 + 2ab$

solution :

Using identity $(a+b)^{2} = a^2 + b^2 + 2ab$ we get

$(\sqrt{7}+\sqrt{2})^2$=  $(\sqrt{7)}^2 + (\sqrt{2})^2 + 2 \sqrt{14}$

                    = $7+2+2\sqrt{14}$

                   = $9 + 2 \sqrt{14}$

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