Exercice 2: Réduire les expressions suivantes. A(x) = 10x²-3x - 15 + 2x² - 7x + 1 C(x)=x²-7x-3-(x² + 3x-7) B(x) = x² + x +1 − (2x² − 5x + 2) D(x) = 5x² - 6x-2-(

Bonsoir !

A(x) = 10x² - 3x - 15 + 2x² - 7x + 1

A(x) = 12x² - 10x - 14

B(x) = x² + x + 1 − (2x² − 5x + 2)

B(x) = x² + x + 1 - 2x² + 5x - 2

B(x) = - x² + 6x - 1

C(x) = x² - 7x - 3 - (x² + 3x - 7)

C(x) = x² - 7x - 3 - x² - 3x + 7

C(x) = - 10x + 4

D(x) = 5x² - 6x - 2 - (x² - 4)

D(x) = 5x² - 6x - 2 - x² + 4

D(x) = 4x² - 6x + 2

Bonne soirée :)