1.

\[\int_{{}}^{{}}{(x+3){{({{x}^{2}}+6x+10)}^{9}}\ dx}\] equals        [SCRA 1996]

A.            \[\frac{1}{20}{{({{x}^{2}}+6x+10)}^{10}}+c\]              
B.            \[\frac{1}{20}{{(x+3)}^{2}}{{({{x}^{2}}+6x+10)}^{10}}+c\]
C.            \[\frac{1}{16}{{({{x}^{2}}+6x+10)}^{8}}+c\]                
D.            \[\frac{1}{38}{{(x+3)}^{19}}+\frac{1}{2}(x+3)+c\]
Answer» B.            \[\frac{1}{20}{{(x+3)}^{2}}{{({{x}^{2}}+6x+10)}^{10}}+c\]


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