SOLUTION: Which numbers cannot be used in place of the variable in the rational expression: 2y + 1 y^2 � y

SOLUTION: Which numbers cannot be used in place of the variable in the rational expression: 2y + 1 y^2 � y - 6

Question 174572: Which numbers cannot be used in place of the variable in the rational expression:
2y + 1
y^2 � y - 6

Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
if this is as I suspect it is......then the denominator cannot be zero.
:
therefore set and solve
:

:
y cannot be
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