bonjour j’aurais besoin d’aide pour cette exercice de factorisation. merci.

Bjr

A = 9x²-5x

A = x(9x-5)

B = 6x+9

B = 3(2x+3)

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

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

C = x(4x+5-2)

C = x(4x+3)

D = (x+4)(x-6)+(-1+x)(x-6)

D = (x-6)(x+4-1+x)

D = (x-6)(2x+4-1)

D = (x-6)(2x+3)

E = (3x-1)-(3x-1)²

E = (3x-1)(1-(3x-1))

E = (3x-1)(1-3x+1)

E = (3x-1)(2-3x)

F = x²+8x+16

F = x²+2×x×4+16

F = x²+2×x×4+4²

F = (x+4)²

G = 4-x²

G = 2²-x²

G = (2-x)(2+x)

H = 9x²-30x+25

H = 3x²x²-30x+25

H = 3x²x²-2×3x×5+25

H = 3x²x²-2×3x×5+5²

H = (3x)²-2×3x×5+5²

H = (3x-5)²

I = 25-36a²

I = 5²-36a²

I = 5²-6²a²

I = 5²-(6a)²

I = (5-6a)(5+6a)

J = (4x-3)²-1

I = (4x-3-1)(4x-3+1)

I = (4x-4)(4x-3+1)

I = (4x-4)(4x-2)

I = 4(x-1)(4x-2)

I = 4(x-1)×2(2x-1)

I = 4×2(x-1)(2x-1)

I = 8(x-1)(2x-1)

Bonne journée !