J'ai 3 exercice de maths à faire.. Vous pouvez maidez si vous plais..

x² + 6x + 9 = (x + 3)²

16x² - 56x + 49 = (4x - 7)²

c² - d² = (c + d) (c - d)

x² - 100 = x² - 10² = (x+10) (x-10)

(x-3) (x-2) + 5(x-3)

= (x-3) (x-2+5)

= (x-3) (x+3)

3 (5-9x) - (5-9x) (1-3x)

= (5-9x) (3 - (1-3x))

= (5-9x) (2+3x)

(2x-5) (7x+5) - (2x-5)²

= (2x-5) (7x+5-(2x-5))

= (2x-5) (5x+10)

= 5 (2x-5) (x+2)

4x - 4y = 4 (x-y)

49a - 7b = 7(7a - b)

3x² + 7x = x (3x+7)

xy - x = x (y-1)

Bonjour,

Factoriser..

A= x²+6x+9

A= (x+3)²

B= 16x²-56x+49

B= (4x-7)(4x+7)

C= c²-d²

C= (c-d)(c+d)

D= x²-10

X= (x-10)(x+10)

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

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

A= (x-3)(x+3)

B= 3(5-9x)-(5-9x)(1-3x)

B= (5-9x)(3-1+3x)

B= (5-9x)(-2+3x)

C= (2x-5)(7x+5)-(2x-5)²

C= (2x-5)(7x+5-2x+5)

C= (2x-5)(5x+10)

C= 5(2x-5)(x+2)

A= 4x-4y

A= 4(x-y)

B= 49a-7b

B= 7(7a-b)

C= 3x²+7x

C= x(3x+7)

D= xy-x

D= x(y-1)