Sagot :
1- (6x-8+2x-3)(6x-8-2x+3)
(8x-11)(4x-5)
2-(5x-8)(5x-8+1)
(5x-8)(5x-7)
3-(2x+5)²-9²
(2x+5-9)(2x+5+9)
(2x-4)(2x+14)
(8x-11)(4x-5)
2-(5x-8)(5x-8+1)
(5x-8)(5x-7)
3-(2x+5)²-9²
(2x+5-9)(2x+5+9)
(2x-4)(2x+14)