bjr
comme k (a + b) = k * a + k * b
on aura
x (2 - 3x ) =x * 2 + x * (-3x) = 2x - 3x²
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bjr
comme k (a + b) = k * a + k * b
on aura
x (2 - 3x ) =x * 2 + x * (-3x) = 2x - 3x²