document.write( "Question 242087: this has to do with rational expressions.\r
\n" ); document.write( "\n" ); document.write( "2y + 1 over y^2 - y - 6\r
\n" ); document.write( "\n" ); document.write( "numbers that cannot be used in place of the variable in the expression.
\n" ); document.write( "I am lost on my whole chapter with rational expressions. \n" ); document.write( "

Algebra.Com's Answer #177228 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"%282y+%2B+1%29%2F%28y%5E2+-+y+-+6%29\"$
\n" ); document.write( "numbers that cannot be used in place of the variable in the expression.
\n" ); document.write( ":
\n" ); document.write( "Assume you know that you cannot have the value of 0 in the denominator
\n" ); document.write( "Another words if y^2 - y - 6 = 0 that is value for y that is forbidden
\n" ); document.write( ":
\n" ); document.write( "To find out what that is, we just set the denominator expression to = 0
\n" ); document.write( "Find out what value(s) of y that will be
\n" ); document.write( ":
\n" ); document.write( "y^2 - y - 6 = 0
\n" ); document.write( "Factor this to
\n" ); document.write( "(y-3)(y+2) = 0
\n" ); document.write( "two solutions
\n" ); document.write( "y = 3
\n" ); document.write( "y = -2
\n" ); document.write( ":
\n" ); document.write( "the answer is that y = 3 and y = -2 are values that cannot be used \n" ); document.write( "

\n" );