Explications étape par étape:
a = 6x + 12
e = -6x² + 3x² + 9 = -3x² + 9
b = 2x² - x
f = 2x - 4 + 3x + 6 = 5x + 2
c = 3x - 2x² = -2x² + 3x
g =6x - 15 - 2x + 2 = 4x - 13
d = x + 4x - 2 = 5x -2
h = -12x² + 6x + 24x³ - 21x² = 24x³ - 33x² + 6x
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Explications étape par étape:
a = 6x + 12
e = -6x² + 3x² + 9 = -3x² + 9
b = 2x² - x
f = 2x - 4 + 3x + 6 = 5x + 2
c = 3x - 2x² = -2x² + 3x
g =6x - 15 - 2x + 2 = 4x - 13
d = x + 4x - 2 = 5x -2
h = -12x² + 6x + 24x³ - 21x² = 24x³ - 33x² + 6x