Va rog ajutati-ma cu expresia :(

Va Rog Ajutatima Cu Expresia class=

Răspuns :

(x+3)/(4x-4)-1/(x-1)=
(x+3)/4(x-1)- 4×1/4(x-1)=
(x+3-4)/4(x-1)=
(x-1)/4(x-1)=
1/4

1- 1/(x+1)=
1(x+1)/(x+1) -1/(x+1)=
(x+1-1)/(x+1)=
x/(x+1)
E(x)=(x+1)/(x²+1) ÷1/4 •x/(x+1)=4(x+1)/(x²+1) •x/(x+1)=4x/(x²+1)