Sagot :
A= 3x-3
A= 3(x-1)
B= 4y + 6
B = 2(2y+3)
C=7x²-5x
C=x(7x-5)
D=30a+45a²
D=15x(2+3x)
E= x²-x
E=x(x-1)
Explications étape par étape
A = 3x - 3 = 3 ( x - 1 )
B = 4y + 6 = 2 ( 2y + 3 )
C = 7x² - 5x = x ( 7x - 5 )
D = 30a + 45a² = a ( 30 + 45a )
E = x² - x = x ( x - 1 )