(2⁹: 2⁷) * (3⁹: 3⁸) * (4⁹ : 4⁹) = 2² * 3 * 1 = 4*3 = 12
Salut! :)
( 2⁹ : 2⁷ ) × ( 3⁹ : 3⁸ ) × ( 4⁹ : 4⁹ ) =
2² × 3¹ × 1 =
4 × 3 = 12
