1,-a(a-2)(a-6)
2,(x-7)(2x-1)
3,(3a-2)(a-2)
4,(x+2)(5x-3)
5,2(x-1)(3x-5)
1.-a^3-4a^2+12a2.2x^2+15x+73.3a^2-8a+44.5x^2+7x-65.6y-11y-10
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