CÂU 16. CHỌN A. (I) Y (X 1)3 3(X1)2 0, X X X...
1.
1
.
1
1
x
x
x
y
x
(III)
2
2
2
2
2
2
1
1
x
x
2
1
1
2
1
0,
x
1.
1
.
1
1
x
x
x
y
x
(III)
2
2
2
2
2
2
1
1
x
x
2
1
1
2
1
0,
x