Question

$\sqrt {{30 }+ \sqrt {31}+ \sqrt{22+x}}$

$$find x

• A. 5
• B. 3
• C. 7
• D. 9

Answer 1

Answer:

B. 3

$\sqrt {{30 }+ \sqrt {31}+ \sqrt{22+x}}$

$$ the perfect square after 22 is 25, So x = 25 - 22 =3