1.
- 7a
- 2b
- 4x
- 6y
- 2a-8b
- 2x²-3x
- 2x+2-3y
- 8ab+4a+4b
- 2a-2b2-c
- -5m-5+2n
- 5-a-2ab-6b
- 9x-y-10-4z
- y²
- 6a⁵+4a³
- a²-3ab-2b²
- 2x²y²-3x²y
- 3ab⁵+6a-8b
- 5m⁵n⁴+5-3
- 6a³-3a²
- 3c²-3-1
- -6xn+5-7
- 2am-1(1-a)(1+a)
- 3(4-2x4+x+2x3
- -5z3n+2-11z3+14z2
2.
- 3a+3b
- 3x-2y
- 3y-3
- 6n-2m
- 2a2-a
- 3b+2c
- K
- 2x+10
- 15x3-6x2
- 2a3b3-5b4
- -4x2y+12xy2
- 5a5-8b3
- 4x-5y
- 9m2+7mn+n2
- 6xn-2yn
- 3an-7an+1+b3+11
- a+b-c+d
- a-b+c-d
- a-b+c+d
- a-b+c-d
- -3
- 3(n+4)
- 4a+11
- 2(4b-3c)
- 6a2+5b2
- -xy+3y2+3x2
- 8m2+3n2-5m
- 9an+1-bn-4an
- -c+d+m
- -c+d+m
- a+b-2c-d+m
- a+b+c-m
- -6m
- 8x
- 5a-c+d+5b
- 2a-2c-7b
- -4z-5y+x+2xz-6yz+10z2
- x-4y-z
- 9(2m-n)
4.
- a7
- b9
- -m6
- x8
- y11
- c11
- pn+2
- mm+4
- xn+k+3
- yn+5
- z3n-2
- b-m+3
- 15a6
- -40b7
- 21a5b3
- 20x3y8
- 10a8b2c5
- 10b7c7x9
- a4n+5
- 10xm+4
- 30x3y5z5
- -7\5a5b5c3d
- -1\2x6y10
- -1\2a8b3c7
- -3\2a11b7c4
- -3\2a11b7c4
- 5\2x6y10z7
- -1\2x4k+3y3k+2
- 9\50a3n+3b3n+3
- 27a3n+3b6\50
- 232x11y10z8\58
- 1\7(-49\2an-2bn+8c2n+3+6a5b2n-7c2)
- 2\3x5n-5yn+1z
- 17\6x15y15z15
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