Verified answer

Bonsoir,

Factorise

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

C= (5x-3)(5x-4)

D= (4x+7(4x+7+1)

D= (4x+7)(4x+8)

E= (x-2)(4x-1)-(4x-1)(x+2)

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

E= -4(4x-1)

F= (2x-3)²-(x+6)(2x-3)+(4x-6)

F= (2x-3)(2x-3-x-6+4x-6)

F= (2x-3)(5x-15)

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