Question

Найдите значения 4√19600-3√22500; √2,25-5√3600

Answer 1

$4sqrt{196*100} -3sqrt{225*100} =4*sqrt{196}*sqrt{100}-3sqrt{225}*sqrt{100} =10(4*14-3*15)=10(56-45)=110$$\sqrt{225/100} -5sqrt{36*100}=frac{sqrt{225} }{100}-5sqrt{36}sqrt{100}=frac{15}{10} -30*10=frac{15-3000}{10}=frac{-2985}{10}= -298,5$

Ответ: 110 и -298,5