Упростите: 2a-2c+ax-cx/x^2-4

Question

Упростите:
2a-2c+ax-cx/x^2-4

Answer 1

(2a-2c+ax-cx)/(xˇ2-4)=(2(a-c)+x(a-c))/(x+2)(x-2)=
=(a-c)(x+2)/(x+2)(x-2)=(a-c)/(x-2)