E=(X^2+4X+8)+3X(X^2+4X+8)+2X^2
B=(x+2)(x-4)(x+6)(x-12)+36x^2
C=(X+2)(X+3)(X+8)(X+12)-4X^2
D=(X-18)(X-7)(X+35)(X+90)-67X^2
A=(x-2)(x-4)(x-5)(x-10)-54x^2
Loga
Sinh Học lớp 12
