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ax -x -a + 1
2) 3x(x-2-2) y (x-2)
3x²-6x -6x * (x-2)
3x³-12x² + 6x² + 24x
3x³-6x² +24x =
x³-2x²+8x
x (x²-2x +8)
3. (a+b)(a-b)-(a-b)(a-b)
(a-b)² - (a+b)²
4. (a+b+c) (x-3) - (b-c-a) (x-3)
(x-3) (a+b+c) - (b-c-a)
5. (n+1) a+b ( n+1)-n-1
(n +1) (a) + b - n-1
6. (3x+2) (x+y-z)-(3x+2)-(x+y)-(3x+2)
(3x+2)(x+y-z)-(x+y) -2
2) 3x²-6x-6x+yx-2y=
3x²-12x+yx-2y
3)(a²+ab+ba-b²)-(a²-ab-ba+b²)=
(a²+2ab-b²)-(a²-2ab+b²)=
a²+2ab-b²-a²+2ab-b²=
-2b²+4ab
4)(ax-3a+bx-3b+cx-3c)-(bx-3b-cx+3c-ax+3a)=
ax-3a+bx-3b+cx-3c-bx+3b+cx-3c+ax-3a=
2ax-6a+2cx-6c
5)an+a+bn+b-n-1=
an+bn+a+b-n-1
6)3x²+3xy-3xz+2x+2y-2z-3x²-2-x-y-3x-2=
6x²+3xy-3xz-2x+y-4