Bài tập về Hằng Đẳng Thức 01 => (2x – 5) 2 02 => 81x 2 – 16 03 => (3x – 4)(6x + 1) 04 => 64 + 48x + 9x 2 05 => (– 4x + 7) 2 06 => 25x 2 – 36 07 => (– 2x + 5)(6 – 7x) 08 => 16x 2 – 72x + 81 09 => (4 – 5x) 2 10 => 16 – 9x 2 11 => (8x + 9)(7x + 8) 12 => 25x 2 – 70x + 49 13 => (6x + 3) 2 14 => 16x 2 – 25 2 15 => (3x – 4)(1 + 2x) 16 => 25 – 60x + 36x 2 17 => (2x – 7) 2 18 => 4 – 9x 2 19 => (– 5 + 5x)(6x – 1) 20 => 4x 2 – 20x + 25 21 => (2 + 3x) 2 22 => 16 – 25x 2 23 =>...