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Factoriser les expressions suivantes :
A = (2x - 3)²-(x-1)²
D = 4x² - 3
B = 4x² - 4x + 1
E = 9x² + 6x +1
C = 2(x-2)²-(x-2)(2x+3)
F=-x+1-(x-1)(2x + 3)