Question

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Answer 1

Answer:

=> (✓5+✓2)²

=>✓5²+✓2²+2×✓2×✓5

=> 5+2+2×✓10

=> 7+2✓10

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Answer 2

QUESTION:-

$\sf\dashrightarrow SIMPLIFY\:(\sqrt{5}+ \sqrt{2})^2$

✯IDENTITY IN USE,

$\large{\boxed{\bf{ \star\:\: (a+b)^2=a^2+b^2+2ab \:\: \star}}}$

ANSWER✔

$\sf\therefore (\sqrt{5}+ \sqrt{2})^2$

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

$\sf\implies 5+2+ 2 \times \sqrt{10}$

$\sf\implies 7+. 2 \sqrt{10}$

$\large{\boxed{\bf{ \star\:\: 7+. 2 \sqrt{10} \:\: \star}}}$

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