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Exercice 5 Factoriser les expressions suivantes :
6x + 5x
3xy + x
2x (x - 1) + 3x
2x(x + 3) + 4x + 12
(x + 1)(x + 2) + 5(x + 2)
x² - 20x + 100
(2x + 1)2
(1-x)²
x² + 3x + (x+3)²
4x²+4+8x
64-(x+7)²
x² +26x +169
x³ + 2x² + x

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