Question 1138647

{{{lim(x ->9, ((x^2 -81)/( x -9)))}}}...simplify first


{{{lim(x ->9, ((x^2 -9^2)/( x -9)))}}}


{{{lim(x ->9, (((x -9)(x+9))/( x -9)))}}}


{{{lim(x ->9, ((cross((x -9))(x+9))/cross(( x -9))1))}}}


{{{lim(x ->9, (x+9))=9+9=18}}}