Sagot :
Bonsoir,
(-2x + 4)(6x-2) + (3x - 3)(-4x+8)
(-4x+8) = 2(-2x+4)
(-2x + 4)(6x-2) + (3x - 3)*2* (-2x+4)
= (-2x+4) ( 6x-2 +6x-6)
= (-2x+4) (12x -8)
Bonsoir,
(-2x + 4)(6x-2) + (3x - 3)(-4x+8)
(-4x+8) = 2(-2x+4)
(-2x + 4)(6x-2) + (3x - 3)*2* (-2x+4)
= (-2x+4) ( 6x-2 +6x-6)
= (-2x+4) (12x -8)