[Solved] Polynomials

Polynomials

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June 15, 2021 11:38 am

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Staff

(@armor)

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$(x-1)P(x)=x^4+ax^3+3x-7\Rightarrow a=?$

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June 15, 2021 11:38 am

Topic starter

Staff

(@armor)

Admin

Honorable Member

317 Posts
156 153 0

$\small x-1=0\Rightarrow x=1$

$\small 1^4+a.1^3+3.1-7=(1-1)P(1)$

$\small =1+a+3-7=0\Rightarrow a=3$

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