a) (2-5a) [3(2-5a)-a+5]
b) (a-b) [2+(a-b)-3b]
c) (x-2a) [(x+3)-(x+1)+5x]
d) (3x-5) [(3x-5)-2(5-3x)+(x-5)]
e) (7a-2) [(5-2a)+7a(2-7a)-(7a-2)]
f) (x-6) la patrat [(x-6)+(x+1)-(5-3x)]
g) (5y-4x) [(4x-5y)(2x+y)-(3x-y)+(5y-4x)]
h) (2x+3y) la patrat [(x-y)+3(2x+3y)-2(3x+4y)]
sper ca te-am ajutat!
