bonjour
H = ( 2 x + 7 )²
I = ( 6 x + 3 )²
J = ( 6 x - 3 )²
K = ( 3 x - 9 )²
L = ( 3 x - 2 )²
M = ( 3 x - 4 - 3) ( 3 x - 4 + 3) = ( 3 x - 7 ) ( 3 x - 1 )
N = ( x + 1 - 3) ( x + 1 + 3) = ( x - 2 ) ( x + 4 )
P = ( 2 x - 1 - 10 ) ( 2 x - 1 + 10) = ( 2 x - 11 ) - 2 x + 9 )
R = ( x - 1 + x + 3 ) ( x - 1 - x - 3 ) = ( 2 x + 2 ) ( - 4 )
apprends ta leçon sur les identités remarquables