Factoriser chaque expression. E = 25 - (3x-1)² F = (4x-1)² - (7 - 2x)²

bonjour

e = 25 - (3x-1)²
5²-(3x-1)²
(5-3x+1)(5+3x-1)
(-3x+6)(3x+4)
3(-x+2)(3x+4)

F = (4x-1)² - (7 - 2x)²
(4x-1-7+2x)(4x-1+7-2x)
(6x-8)(2x+6)
2(3x-4)2(x+3)
4(3x-4)(x+3)

bonjour

E = ( 5 + 3 x - 1) ( 5 - 3 x + 1)
E = ( 3 x + 4) ( - 3 x + 6)

F = ( 4 x - 1 + 7 - 2 x) ( 4 x - 1 - 7 +  2 x)
F = ( 2 x + 6) ( 6 x - 8)

identités remarquables, différence de 2 carrés