Explications étape par étape
A = - 2 ( x + 5 ) = - 2x - 10
B = - 5 ( 2a - 3 ) = - 10a + 15
C = x ( 3 - 4x ) = 3x - 4x²
D = ( 2 + b )( b + 5 ) = 2b + 10 + b² + 5b = b² + 7b + 10
E = ( - 2m + 3 )( 6m + 4 ) = - 12m² - 8m + 18m + 12 = - 12m² + 10m + 12
F = - 13p + 6,4p = p * ( - 13 + 6,4 )
G = 14a - 28b = 7 * ( 2a - 4b )
H = 10 ( x + 1 ) + y ( x + 1 ) = ( x + 1 )( 10 + y )
