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BONJOUR, qql peut maider sil vous plait

Enoncé:

Factoriser:
3x + 9 = ……………………………………….
16x² – 24x + 9 = ……………………………….
100 – 49x² = ………………………………

Merciii d'avance

Sagot :

SWNN
3x + 9 = 3(x+3)

16x²-24x+9 = (4x-3)²

100-49x²= (10+7x)(10-7x)

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