The difference of \[{{x}^{4}}+2{{x}^{2}}-3x+7\]and another polynomial – McqOptions

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1.	The difference of \[{{x}^{4}}+2{{x}^{2}}-3x+7\]and another polynomial is \[{{x}^{3}}+{{x}^{2}}+x-1\]. What is the other polynomial?
A.	\[{{x}^{4}}-{{x}^{3}}+{{x}^{2}}-4x+8\]
B.	\[{{x}^{3}}+{{x}^{2}}-4x+8\]
C.	\[{{x}^{4}}-{{x}^{3}}+{{x}^{2}}+4x-8\]
D.	\[{{x}^{4}}-{{x}^{3}}-{{x}^{2}}+4x-8\]
Answer» B. \[{{x}^{3}}+{{x}^{2}}-4x+8\]

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