Bonjour,
Ex 2)
(x+6)² + x + 6 = x² + 12x + 36 + x + 6 = x² + 13x + 42
(x + 6)(x + 7) = x² + 7x + 6x + 42 = x² + 13x + 42
3(x + 2)² - 27 = 3(x² + 4x + 4) - 27 = 3x² + 12x - 15
3(x - 1)(x + 5) = 3(x² + 5x - x - 5) = 3x² + 12x - 15
(2x - 1)/(x + 1) + 2 = (2x - 1 + 2(x + 1))/(x + 1) = (4x + 1)/(x + 1)
Bonne journée
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Bonjour,
Ex 2)
(x+6)² + x + 6 = x² + 12x + 36 + x + 6 = x² + 13x + 42
(x + 6)(x + 7) = x² + 7x + 6x + 42 = x² + 13x + 42
3(x + 2)² - 27 = 3(x² + 4x + 4) - 27 = 3x² + 12x - 15
3(x - 1)(x + 5) = 3(x² + 5x - x - 5) = 3x² + 12x - 15
(2x - 1)/(x + 1) + 2 = (2x - 1 + 2(x + 1))/(x + 1) = (4x + 1)/(x + 1)
Bonne journée