OCEANERAOUL07
Answered

A = 5 x + (2 x - 8) (- 6 x + 1)
B = (3x - 7) (5 x + 2)-(2 x - 3 x au carré)
C = - 2 (- 4 x + 1) +(- x + 2)(- 2 x + 4)
Aider moi svp c important
Merci beaucoup ​

Sagot :

LOULAKAR

Bonjour

A = 5 x + (2 x - 8) (- 6 x + 1)

A = 5x - 12x^2 + 2x + 48x - 8

A = -12x^2 + 55x - 8

B = (3x - 7) (5 x + 2)-(2 x - 3 x au carré)

B = 15x^2 + 6x - 35x - 14 - 2x + 3x^2

B = 18x^2 - 31x - 14

C = - 2 (- 4 x + 1) +(- x + 2)(- 2 x + 4)

C = 8x - 2 + 2x^2 - 4x - 4x + 8

C = 2x^2 + 6