6. Calculaţi:
x+3x+1
x+4x-6
a)
b)
6-x x+5
9+x 2-x
c)
x+2x-3'
d)
x+5 r-4
x+7 2-x
x-5 x+8
7 Calculati
D-IIIA D
Vă rog !!!! Dau coroană !!
