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Det er gitt et polynom $\\simplify{{a}x^3+{-a*(b+c+d)}x^2+{{a*(b*c+c*d+b*d)}}x+{-a*b*c*d}}$

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Plynomet $P(x)$ er delelig med polynomet $x-a$ hvis og bare hvis $P(a)=0$

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Hvilke av følgende polynomer er faktorer i uttrykket over

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