L’exercice 44 et 45 svp

Bonjour

♧ 44

● a. 48+8x = 8×6 + 8×x = 8×(6+x)
● b. 63y-35 = 7×9y -7×5 = 7×(9y-5)
● c. 15a+20 = 5×3a + 5×4 = 5×(3a+4)
● d. -2-4t = -2×1 -2×2t = -2×(1+2t)

♧ 45

Même principe ....

Voilà ^^

Bonsoir,

44)
a) 48 + 8x = 8 * 6 + 8 * x = 8 * (6 + x)
b) 63y - 35 = 7 * 9y - 7 * 5 = 7 * (9y - 5)
c) 15a + 20 = 5 * 3a + 5 * 4 = 5 * (3a + 4)
d) - 2 - 4t = 2 * - 1 +  2 * - 2t =  2 * (- 1 - 2t)

45)
a) 6x² - 5x = 6x * x - 5 * x = (6x - 5) * x
b) 49y² + 14y = 7y * 7y + 7y * 2 = 7y (7y + 2)
c) 9n² - 6n = 3n * 3n - 3n * 2 = 3n (3n - 2)
d) 8t² + 6t + 2 = 2 * 4t² + 2 * 3t + 2 * 1 = 2 * (4t² + 3t + 1)