Question

вычеслите более рациональные способом​

Answer 1

(67³ + 52³)/119  -  67*52 =

= (67 + 52)(67² - 67*52 + 52²)/119  -  67*52 =

= 119*(67² - 67*52 + 52²)/119  -  67*52 =

= 67² - 67*52 + 52²  -  67*52 =

= 67² - 2*67*52 + 52² =

= (67 - 52)² = 15² = 225

Answer 2

$frac{(67+52)(67^2-67*52+52^2)}{119}-67*52=frac{119(67^2-67*52+52^2)}{119}-67*52=67^2-2*67*52+52^2=(67-52)^2=15^2=225$