Sagot :
[tex] = ( - 2) \times 5x - 2 \times ( - 2) + (2 - 3x) \times ( - 3) \\ = - 10x + 4 + 2 \times ( - 3) - 3x \times ( - 3) \\ = - 10x + 4 - 6 + 9x \\ = - x - 2[/tex]
Bonsoir
-2(5X-2)+(2-3X)(-4+1)
=-(2×5X)+(2×2)-(2×4)+(2×1)+(4X×3)-(3X×1)
=-10X+4-8+2+12X-3X
=2X+4-8+2-3X
=-X+4-8+2
=-X-4+2
=-X-2
Explications :Appliquer la distributivité et réduire si possible