Question

упростите выражение 3v72-2v50-3v8

v-корень квадратный 

Answer 1

$3 sqrt{72}-2 sqrt{50}-3 sqrt{8}=3 sqrt{36*2}-2 sqrt{25*2}-3 sqrt{4*2}=\ 3*6 sqrt{2}-2*5 sqrt{2}-3*2 sqrt{2}=18 sqrt{2}-10 sqrt{2} -6 sqrt{2}=2 sqrt{2}$

Answer 2

3*6v2 - 2*5v - 3*2v2 = 2v2