Explications étape par étape:
A = (-3)² + (2×-3×4x) + (4x)²
A = 9 - 24x + 16x² = 16x² -24x + 9
B = 10x - 8 - 3x - 4
B = 7x - 12
C = 7x( x + 4)
D =(2x - 1)(10x - 4 + 2x + 5)
D = (2x - 1)( 12x + 1)
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Explications étape par étape:
A = (-3)² + (2×-3×4x) + (4x)²
A = 9 - 24x + 16x² = 16x² -24x + 9
B = 10x - 8 - 3x - 4
B = 7x - 12
C = 7x( x + 4)
D =(2x - 1)(10x - 4 + 2x + 5)
D = (2x - 1)( 12x + 1)