Question

Ex 3 repede dau test!!!

Answer 1

Răspuns:

Explicație pas cu pas:

[(x+1)/(x-2)+(x-3)(x+3)/(x+3)(x+2)×(x-5)/(x-3)-10/(x-2)(x+2)]×(x-2)/(x-1)=

=[(x+2)(x+1)+(x-2)(x-5)-10]:(x-2)(x+2)×(x-2)/(x-1)=

(x²+3x+2+x²-7x+10-10)/(x+2)(x-1)= (2²-4x+2)/(x+2)(x-1)=2(x-1)²/(x+2)(x-1)=

=2(x-1):(x-2)