Re bonjour, c'est pour demain ( maths) Réduire les expressions suivantes :
A = (5x + 2) - (6x + 4)
B = (-5x + 3) + (4x - 5)
C = (-x -4) - (-8x +3)
D = -(5x² + 3) - (8x² -2x + 4)
E = 11 - (-5x² - 3x +3) + (-5x² + 7x) - (15-4x)
A = (5x + 2) - (6x + 4)
B = (-5x + 3) + (4x - 5)
C = (-x -4) - (-8x +3)
D = -(5x² + 3) - (8x² -2x + 4)
E = 11 - (-5x² - 3x +3) + (-5x² + 7x) - (15-4x)
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