Sagot :
bonsoir,
A= 6x² -15x +2x² +6x = 8x² -9x
B= x³ -6x² + 2x
C= 2x² -4x -3x +6 -2x +6 = 2x² -9x +12
D= x² +x - 6x +3 -2x² +x = -x² -4x +3
E= 9x -3 -6x² +2x +3x² -6x = -3x² +5x -3
F= 3y +9x -2xy -6x² -9x + 2xy= -6x² +3y
bonsoir,
A= 6x² -15x +2x² +6x = 8x² -9x
B= x³ -6x² + 2x
C= 2x² -4x -3x +6 -2x +6 = 2x² -9x +12
D= x² +x - 6x +3 -2x² +x = -x² -4x +3
E= 9x -3 -6x² +2x +3x² -6x = -3x² +5x -3
F= 3y +9x -2xy -6x² -9x + 2xy= -6x² +3y