Sagot :
bonsoir
E = ( 3 x + 8 )² - 64
E = ( 3 x + 8 - 8 ) ( 3 x + 8 + 8 )
E = 3 x ( 3 x + 16 )
Bonsoir,
E = (3x + 8)² - 64
E = (3x + 8)² - 8²
On factorise:
E= (3x+8-8)(3x+8+8)
E= 3x (3x+8)
bonsoir
E = ( 3 x + 8 )² - 64
E = ( 3 x + 8 - 8 ) ( 3 x + 8 + 8 )
E = 3 x ( 3 x + 16 )
Bonsoir,
E = (3x + 8)² - 64
E = (3x + 8)² - 8²
On factorise:
E= (3x+8-8)(3x+8+8)
E= 3x (3x+8)