9) 3x – 2 + 2x(3x – 2) = 0
10) x
2 – 1 + 2(x + 1) = 0
11) x
2 – 4 + 3x(x – 2) = 0
12) x(x + 2) + 2 = –x
13) 4 + 2x(2x + 4) = –x
14) 3x(x – 3) = –x + 3
Loga
Sinh Học lớp 12
