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)