TH C HI N PHÉP TÍNH
Bài 1: Th c hi n phép tính:ự ệ a) 2x(3x
2
5x + 3) b) 2x2
(x2
+ 5x 3) c) 1−2x2
(2x3
4x + 3) d) (2x 1)(x2
+ 5 4) e) 7x(x 4) (7x + 3)(2x2
x + 4).2
5x + 3) b) 2x2
(x2
+ 5x 3) c) 1−2x2
(2x3
4x + 3) d) (2x 1)(x2
+ 5 4) e) 7x(x 4) (7x + 3)(2x2
x + 4).