Bonjour,
a. (x + 5) (x + 3) = x² + 3x + 5x + 15 = x² + 8x + 15
b. (3x + 2) (x + 4) = 3x² + 12x + 2x + 8 = 3x² + 14x + 8
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Bonjour,
a. (x + 5) (x + 3) = x² + 3x + 5x + 15 = x² + 8x + 15
b. (3x + 2) (x + 4) = 3x² + 12x + 2x + 8 = 3x² + 14x + 8