2 câu trả lời
11 x 11 = (1 + 1) x (1 + 1) = 2 x 2 = 4
33 x 33 = (3 + 3) x (3 + 3) = 6 x 6 = 36
=> 24 x 11 = (2 + 4) x (1 + 1) = 6 x 2 = 12
11 x 11 = (1 + 1) x (1 + 1) = 2 x 2 = 4
33 x 33 = (3 + 3) x (3 + 3) = 6 x 6 = 36
=> 24 x 11 = (2 + 4) x (1 + 1) = 6 x 2 = 12
