Bonjour,
(x - 5) * (x + 4)
= x² + 4x - 5x - 20
= x² - x - 20.
(x - 5)*(x + 4)
x^2 +4x - 5x - 20
x^2- x - 20
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Bonjour,
(x - 5) * (x + 4)
= x² + 4x - 5x - 20
= x² - x - 20.
(x - 5)*(x + 4)
x^2 +4x - 5x - 20
x^2- x - 20