Question

Simplify (√5 + √2)
²​

Answer 1

Step-by-step explanation:

7+2√10

rationalising

Answer 2

Answer:

$7 + 2 \sqrt{10}$

Step-by-step explanation:

Using $\sf{(a+b)^2=a^2+b^2+2ab}$

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

Hope it helps u

Have a great day ahead

Annyeong