Bonjour
Distribuer et réduire :
G = (5x + 1)(5x + 5)
G = 25x² - 25x + 5x + 5
G = 25x² - 20x + 5
H = (1x + 5)(6x + 7)
H = 6x² + 7x + 30x + 35
H = 6x² + 37x + 35
I= (1x + 7x)(2x - 8)
H = 2x² - 8x + 14x² - 56x
H = 16x² - 48x.
J= (-2x + 2)(2x + 3)
J = - 4x² - 6x + 4x + 6
J = - 4x² - 2x + 6
K = (-7x - 7x)(-15x - 4x)
K = 105x² + 28x² + 105x² + 28x²
K = 210x² + 56x²
K = 266x².
L = (-1x - 16x)(5x - 8)
L = - 5x² + 8x + 90x² + 128x
L = 85x² + 136x.
