Răspuns:
Explicație pas cu pas:
4/x^2
__________
-125/y^3
__________
(-y/x)^2 = y^2/x^2
__________
x^4/a^4*b^4*y^4
__________
5x/2y^2
__________
(2x/3y)^6 = 2^6*x^6/3^6*y^6
__________
(2x/7y)^10 : (2x/7y)^8 = (2x/7y)^2 = 4x^2/49y^2
__________
(2x-3/2x)^6 : (2x-3/2x)^5 = (2x-3)/2x
