Recopier et reduire les expressions donnees.
A=x+4x B=3y2-2y2 C=3a2-7a2 D=-7×+5+9a-6+x-6a E=10x2-5+2x-9x2+3
F=5a-6y+3a+4y-2a
A=x+4x B=3y2-2y2 C=3a2-7a2 D=-7×+5+9a-6+x-6a E=10x2-5+2x-9x2+3
F=5a-6y+3a+4y-2a
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B = 3y2 - 2y2 = 6y - 4y = 2y
C = 3a2 - 7a2 = 6a - 14a = (-8a)
D = -7x + 5 + 9a - 6 + x - 6a
D = -6x+ 3a -1
E = 10x2 - 5 + 2x - 9x2 + 3
E = 20x - 5 + 2x - 18x + 3
E = 4x - 2
F = 5a - 6y + 3a + 4y - 2a
F = 6a - 2y
A=x+4x
A= x(1+4) = 5x
B=3y2-2y2
B = y (6 - 4) = 2 y
C=3a2-7a2
C =a (6 - 14) = -8a
D=-7×+5+9a-6+x-6a
D=-7x+x+5-6+9a-6a
D= - 6x + 3a -1
E=10x2-5+2x-9x2+3
E= 20 x -5 + 2x - 18x + 3
E= 4x + 2
F=5a-6y+3a+4y-2a
F=6a -2y