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Sagot :

P: 2b²+b

b×(2b+1)

Q:6c+7c²

c×(6+7c)

R:8d+5d²

d×(8+5d)

S: a-6a²

a×(1-6a)

T:5b-4b²

b×(5-4b)

U:10c²-9c

c×(10c-9)

V:3d²-7d

d×(3d-7)

W: 7x²+14x

7x × (x+2)

X:-24y+54y²

-y×(24-54y)

Y:15z²-40z

5z×(3z-8)

Z:-21t-18t²

-3t × (7t+6t)

Voilà

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