Question

упростите выражение: 232) (7√3 + 14√48 - √148) : 2√3 ; 233) 2√20 + 1,5√28 + √45 - √63 ; 234) (2√2/3 - 8√3/8 + 4√3/2) : √2/3  очень срочно!!!

Answer 1

$frac{7sqrt{3}+14sqrt{48}-sqrt{148}}{2sqrt{3}}=frac{7sqrt{3}+56sqrt{3}-2sqrt{37}}{2sqrt{3}}=frac{63sqrt{3}-2sqrt{37}}{2sqrt{3}}=31,5-sqrt{frac{37}{3}}$

 

$2sqrt{20}+1,5sqrt{28}+sqrt{45}-sqrt{63}=4sqrt{5}+3sqrt{7}+3sqrt{5}-3sqrt{7}=7sqrt{5}$

 

$frac{2sqrt{frac{2}{3}}-8sqrt{frac{3}{8}}+4sqrt{frac{3}{2}}}{sqrt{frac{2}{3}}}= frac{2sqrt{frac{2}{3}}-4sqrt{frac{12}{8}}+4sqrt{frac{3}{2}}}{sqrt{frac{2}{3}}}= frac{2sqrt{frac{2}{3}}}{sqrt{frac{2}{3}}}=2$