Question

Помогите, пожалуйста решить пример.

Answer 1

$frac{25(108*6^7-108*6^6)}{216^3-36^4} = frac{25*108*6^6(6-1)}{(6^3)^3-(6^2)^4} = frac{125*108*6^6 }{6^9-6^8} = frac{125*108*6^6}{6^8(6-1)} = frac{125*108*6^6}{6^8*5} = frac{25*108}{6^2}=75$
$12,5^2+1,2^2- frac{12,5^3+1,2^3}{13,7} = (12,5^2+1,2^2)(1- frac{12,5+1,2}{13,7})= (12,5^2+1,2^2)(1- frac{13,7}{13,7}) = (12,5^2+1,2^2)*0=0$