Question

корень из 8 + корень из 50- корень из 72

Answer 1

$sqrt{8}+sqrt{50}-sqrt{72}=sqrt{2*2^2}+sqrt{2*5^2}-sqrt{2*6^2}=\=2sqrt{2}+5sqrt{2}-6sqrt{2}=sqrt{2}$

Answer 2

$sqrt{8} + sqrt{50} - sqrt{72} = 2 sqrt{2} +5 sqrt{2} - 6 sqrt{2} = sqrt{2}$