Réponse :
Explications étape par étape :
■ prendre une calculatrice pour vérifier ! ♥
■ A = 6 - 5 x (-2)² = 6 - 5 x 2² = 6 - 5 x 4 = 6 - 20 = -14
■ B = -0,3 - 16 x (-0,01) = -0,3 + 16 x 0,01 = -0,3 + 0,16 = -0,14
■ C = 40² - 10² = 1600 - 100 = 1500
■ D = 44/22 - 121/22 + 4/22 = 48/22 - 121/22 = -73/22
■ E = 1/6 x (1/6 - 33/6) = 1/6 x (-32/6) = 1/6 x (-16/3) = -16/18 = -8/9
■ F = 21/8 - (1/8 x 3/2) = 21/8 - 3/16 = 42/16 - 3/16 = 39/16
■ G = (5/10 + 9/10) x 21/5 = 14/10 x 21/5 = 294/50 = 147/25 = 5,88
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Réponse :
Explications étape par étape :
■ prendre une calculatrice pour vérifier ! ♥
■ A = 6 - 5 x (-2)² = 6 - 5 x 2² = 6 - 5 x 4 = 6 - 20 = -14
■ B = -0,3 - 16 x (-0,01) = -0,3 + 16 x 0,01 = -0,3 + 0,16 = -0,14
■ C = 40² - 10² = 1600 - 100 = 1500
■ D = 44/22 - 121/22 + 4/22 = 48/22 - 121/22 = -73/22
■ E = 1/6 x (1/6 - 33/6) = 1/6 x (-32/6) = 1/6 x (-16/3) = -16/18 = -8/9
■ F = 21/8 - (1/8 x 3/2) = 21/8 - 3/16 = 42/16 - 3/16 = 39/16
■ G = (5/10 + 9/10) x 21/5 = 14/10 x 21/5 = 294/50 = 147/25 = 5,88