Bonjour besoin d'aide pour cet exercice : Factorise les expressions suivantes :
R = 4 x² +4x +4
S= - 5 x² + 10x + 15
T = 9 y² - 3 y +27
U = 3 y au cube + y²
V = 8x + 12 y
W= 24 x + 30y -18 z
Y = 15xy +30 xz
Z = 25 x²y -15 xy
Merci d'avance
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