Bonjour,
A = 4x² + 3x
A = x * 4x + x * 3
A = x(4x + 3)
B = 7x² - x
B = x * 7x - x * 1
B = x(7x - 1)
C = 2x + 5x³
C = x * 2 + x * 5x²
C = x(2 + 5x²)
D = 4x² + 8x
D = 4x * x + 4x * 2
D = 4x(x + 2)
E = 5x² - 15x
E = 5x * x - 5x * 3
E = 5x(x - 3)
F = 2x² + 8x⁴
F = 2x² * 1 + 2x² * 4x²
F = 2x²(1 + 4x²)
G = 5x³ - x² + 2x
G = x * 5x² - x * x + x * 2
G = x(5x² - x + 2)
H = - 4x³ - 4x² + 8x
H = - 4x * x² - 4x * x + 4x * 2
H = - 4x(x² + x - 2)
* = Multiplication
Bonne soirée.
