Решите 3xy\x-y*x-y\6xy^2= (3ab^3\a-b)^(6ab^4)= (2a-b)^2*2a+b\2a-b=

1) (3 * x * y)/(x - y) * (x - y)/(6 * x * y²) = ((3 * x * y) * (x - y))/((x - y) * (6 * x * y²)) = (3 * x * y)/(6 * x * y²) = 1/(2 * y); 

2) (3 * a * b³/a - b)^{(6ab^4)} = (3 * a * b³)^{(6ab^4)}/(a - b)^{(6ab^4)};

3) (2 * a - b)² * (2 * a + b)/(2 * a - b) = ((2 * a - b) * (2 * a - b) * (2 * a + b))/(2 * a - b) = ((2 * a - b) * (2 * a + b))/1 = (2 * a - b) * (2 * a + b) = (2 * a)² - b² = 4 * a² - b².