CHO Y = (X + 3)(5 – 2X), –3  X 

2) - TOAN 10 DE DAP AN ON TAP THI HK2 DE SO 6
Lớp 10 Toán TOAN 10 DE DAP AN ON TAP THI HK2 DE SO 6
2) Cho y = (x + 3)(5 – 2x), –3  x 