Bonsoir,
4 (2x-3) = 8x- 12
4x-2(3x + 4) - x
= 4x-6x -8 -x
= -3x -8
(5x + 6)2x-2
= 10x² + 12x -2
4(2x - 3) = (4 × 2x) + (4 × ( - 3))
4(2x - 3 ) = 8x + ( - 12)
4(2x - 3) = 8x - 12
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4x - 2(3x + 4) - x = 4x - (2 × 3x + 2 × 4) - x
4x - 2(3x + 4) - x = 4x - (6x + 8) - x
4x - 2(3x + 4) - x = 4x - 6x - 8 - x
4x - 2(3x + 4) - x = - 3x - 8
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(5x + 6) × 2x - 2 = 5x × 2x + 6 × 2x - 2
(5x + 6) × 2x - 2 = 10x² + 12x - 2
bonne soirée