... + 6x = .2. (2 + x) VIII – Factoriser (au maximum) 10 - 35x 7x + x² 3 - 2x² + 6x 3 – 6x2 – 18x + 3 =12 - 4x? – 8x2 = 3 X X - Pouvez m’aider pour cette exerci

Bonjour,

Factoriser:

A = 10 - 35x

A = 5*2 - 5*7x

A = 5(-7x + 2)

B = 7x + x²

B = x*7 + x*x

B = x(x + 7)

C = -2x² + 6x

C = 2x*(-x) + 2x*3

C = 2x(-x + 3)

D = -6x² - 18x + 3

D = 3*(-2x²) + 3*(-6x) + 3*1

D = 3(-2x² - 6x + 1)

E = 4x³ - 8x²

E = 4x² * x + 4x² * (-2)

E = 4x²(x - 2)

* = multiplication

Bonne journée.

Explications étape par étape :

10 - 35x

= 5 * 2 - 5 *7x

= 5(2 - 7x)

7x + x²

= 7x + x * x

= x(7 + x)

-2x² + 6x

= -2 * x * x + 2 * 3x

= 2x(-x + 3)

-6x² - 18x + 3

= -3 * 2x² - 3 * 6x + 3 * 1

= 3(-2x² - 6x + 1)

4x^3 - 8x²

= 4 * x * x² - 4 * 2x²

= 4x²(x - 2)