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Sagot :

Bonjour,

A= 3x-7x +5

= -4x +5

B= 2x +2 -5x

= -3x +2

C=3*-2² -4 * -2 +5

=12 +8 +5

= 25

D =  15x -6

E= 3x-6 +10x

= 13x -6

F = 8x -6x²  -3x² +3x

= -9x² + 11x

G= 7( 3 -4x)

H= x( 5x -2)

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