Bonsoir,
les expressions A, B, et G sont factorisées
2 × (x+8) = 2x+16
(4x+3) × y = 4xy+3y
x × (2 × 3) = 6x
2 × x + 8 = 2x + 8
4 × x × y + 3 × y = 4xy + 3y
x + 2 + 3 = x + 5
(x+3) × (x+5) = x × x + x × 5 + 3 × x × 3 × 5 = x²+5x+3x+15 = x² + 8x + 15
(x + 3) + (x + 5) = 2x + 8
