Bonsoir pouvez-vous m’envoyer cet exercice de maths svp

Hello !

1) A = -2(x-1)-(x+1)(2x-3) = -2x+2 - (2x^2-3x+2x-3) = -2x+2-2x^(2)+3x-2x+3
A = -2x^2 -2x+3x-2x+2+3
A = -2x^(2)-x+5

2) B = (2/5 - 1/5 × 10/3) ÷ (3/2-2)
B = (2/5 - 10/15) ÷ (3/2 - 4/2)
B = (6/15 - 10/15) ÷ (-1/2)
B = -4/15 × 2/(-1) = -8/-15 = 8/15

Bonne soirée