Question

сократите дробь:

   х^2-x-20

__________

      x+4

Answer 1

(х²-х-20)/(х+4)=(х+4)(х-5)/(х+4)=х-5.

Answer 2

 (х^2-x-20)/(x+4)=(x-5)*(x+4)/(x+4)=x-5