Question

please solve it fast correct answer will be choosed to brain list.​

Answer 1

I)

$3 \sqrt{45} - \sqrt{125} + \sqrt{200} - \sqrt{50}$

$3 \sqrt{9 \times 5} - \sqrt{25 \times 5} + \sqrt{100 \times 2} - \sqrt{25 \times 2}$

$3 \times 3 \sqrt{5} - 5 \sqrt{5} + 10 \sqrt{2} - 5 \sqrt{2}$

$9 \sqrt{5} - 5 \sqrt{5} + 10 \sqrt{2} - 5 \sqrt{2}$

$4 \sqrt{5} + 5 \sqrt{2}$

ii)

$\frac{2 \sqrt{30} }{ \sqrt{6} } - \frac{3 \sqrt{140} }{ \sqrt{28} } + \frac{ \sqrt{55} }{ \sqrt{99} }$

$2 \sqrt{ \frac{30}{6} } - 3 \sqrt{ \frac{140}{28} } + \sqrt{ \frac{55}{99} }$

$2 \sqrt{5} - 3 \sqrt{5} + \sqrt{ \frac{5}{9} }$

$- \sqrt{5} + \frac{ \sqrt{5} }{3}$

$\frac{ - 3 \sqrt{5} + \sqrt{5} }{3}$

$-\frac{2 \sqrt{5} }{3}$

iii)

$\sqrt{72} + \sqrt{800} - \sqrt{18}$

$\sqrt{36 \times 2} + \sqrt{400 \times 2} - \sqrt{9 \times 2}$

$6 \sqrt{2} + 20 \sqrt{2} - 3 \sqrt{2}$

$26 \sqrt{2} - 3 \sqrt{2}$

$23 \sqrt{2}$

Answer 2

Step-by-step explanation:

Refet the above mentioned attachment....