👤

Ajutatima va rog frumos !!! Dau 50 p.
a) y+2/2y+1 - 2y-3/2y+1
b) x+1/3x + 2-x/4x
c)x²-16/2x+6 * x²+6x+9/x+4
d)y²+3y/y-1 : y²-9/y²-2y+1