Question

va rog
ex 5
ofer coroana primului raspuns corect

Answer 1

[5/(x-2) + 2/(x+2) -6/(x²-4)]: (x²+4)/(x²-4) +1] =
=[5(x+2)+2(x-2)-6]/(x²-4)]: (x²+4+x²-4)/(x²-4) =
=(5x+10+2x-4-6)/(x²-4) × (x²-4)/2x² =
=7x/2x² =7/2x

Answer 2

[5/(x-2)+2/(x+2)-6/(x²-4)] :[(x²+4)/(x²-4)+1]=
=[5(x+2)+2(x-2)-6]/(x²-4) : (x²+4+x²-4)/(x²-4)=
=(5x+10+2x-4-6)/(x²-4) × (x²-4)/2x²=
=7x/(x²-4) × (x²-4)/2x²=
=7x/1 × 1/2x²=
=7x/2x²=7/2x