1.

If\[p(x)=4{{x}^{3}}-3{{x}^{2}}+2x+1\],\[q(x)={{x}^{3}}-{{x}^{2}}+x+1\]and\[r(x)={{x}^{2}}-2x+1\]find the value of\[3p(x)+7q(x)+r(x)\]

A.  \[19{{x}^{3}}-15{{x}^{2}}+11x+11\]
B.         \[-19{{x}^{3}}-15{{x}^{2}}+11x-11\]
C.         \[19{{x}^{3}}-15{{x}^{2}}-11x+11\]
D.         \[19{{x}^{3}}-15{{x}^{2}}-11x-11\]
Answer» B.         \[-19{{x}^{3}}-15{{x}^{2}}+11x-11\]


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