Question 1163693
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Do not solve.
1x−4+1x+3=1x2−x−12
What values of x cannot be solutions of the equation?
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To make better sense, write it like this:  {{{x-4+x+3=x^2-x-12}}}.

Easily simplified.
{{{2x-1=x^2-x-12}}}
{{{0=x^2-3x-11}}}
{{{x^2-3x-11=0}}}


Use your knowledge of Discriminant to help answer your question.