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Sagot :

NAPSAZZ13

Réponse:

bonjour

Explications étape par étape:

M = 3(x+4)

= 3×x + 3×4

= 3x +12

N = -2( 3x + 5)

= -2×3x -2×5

= -6x -10

P = x(6 - x)

= x×6 - x×x

= 6x - x²

Q = (2+3)(x-1)

= 5(x-1)

= 5×x -5×1

= 5x - 5

R = (4x-1)(5-x)

= 4x×5 -4x×x -1×5 +1×x

= 20x -4x² -5 +x

= -4x² +21x -5

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