1. 5x7-15x6+10x3-20x2
(x-3)(5x6+10x2)
2. 12y9-4y6+6y5+8y9
(2y4+4)(6y5+4y5)
3.7x-14x3
(7)(x-2x3)
4-3x3-18x6
(-3x2)(x+6x4)
5 . 10y3-5y2+10y
(y)(10y2-5y+10)
6. 9y3-183y2+27y
(y)(9y2-18y+27)
9. 12x4+8y2+3x2+2
(3x2+2)(4x2+1)
10.-x2+2y-2x2-4y
(x2+2y)(1-2)
11. 3ª4-6ª2-2ª2+4
(a2-2)(3ª2-2)
12. 6x3-2x2+3x-1
(3x2-1)(2x2+1
13. 4x3+6x2+2x+3
(2x+3)(2x2+1)
14-7x4-2x13-14x15
(x)(7x3-2x12+14x14)
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