If \[y=3x+6{{x}^{2}}+10{{x}^{3}}+........\infty \], then\[\frac{1}{3}y-\frac{1.4}{{{3}^{2}}2}{{y}^{2}}+\frac{1.4.7}{{{3}^{2}}3}{{y}^{3}}-.....\,\infty \] is equal to

If \[y=3x+6{{x}^{2}}+10{{x}^{3}}+........\infty \], then\[\frac{1}{3}y

1.	If \[y=3x+6{{x}^{2}}+10{{x}^{3}}+........\infty \], then\[\frac{1}{3}y-\frac{1.4}{{{3}^{2}}2}{{y}^{2}}+\frac{1.4.7}{{{3}^{2}}3}{{y}^{3}}-.....\,\infty \] is equal to
A.	x
B.	\[1-x\]
C.	\[1 + x\]
D.	\[{{x}^{x}}\]
Answer» B. \[1-x\]

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If \[y=3x+6{{x}^{2}}+10{{x}^{3}}+........\infty \], then\[\frac{1}{3}y-\frac{1.4}{{{3}^{2}}2}{{y}^{2}}+\frac{1.4.7}{{{3}^{2}}3}{{y}^{3}}-.....\,\infty \] is equal to

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