If \[\alpha \] and \[\beta \] are the roots of the equation \[{{x}^{2}}-a(x+1)-b=0\] then \[(\alpha +1)(\beta +1)=\]

If \[\alpha \] and \[\beta \] are the roots of the equation \[{{x}^{2}

1.	If \[\alpha \] and \[\beta \] are the roots of the equation \[{{x}^{2}}-a(x+1)-b=0\] then \[(\alpha +1)(\beta +1)=\]
A.	b
B.
C.	\[1-b\]
D.	\[b-1\]
Answer» D. \[b-1\]

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If \[\alpha \] and \[\beta \] are the roots of the equation \[{{x}^{2}}-a(x+1)-b=0\] then \[(\alpha +1)(\beta +1)=\]

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