Réponses

2014-04-02T20:29:18+02:00
Bonsoir

A = 11/4 x (8x -10) = 88x/4 - 110x/4 = 22x/4

B = (x+9)(3 -2x) = 3x - 2x² +27 - 18x = -2x² - 15x +27

C = (3y+5)(10 + y) = 30y +3y² +50+5y = 3y² + 35y +50

D = (z -2)(3 - z) = 3z - z² -6  + 2z = -z² +5z -6

E = 5(3g +1)(g-2) = 5(3g² -6g +g -2) = 5(3g² -5g -2) = 15g² -25g -10

F = (2x -1)(x² +3) = 3x³ + 6x - x² -3 = 3x³ -x² +6x -3