Question 1135253


In given fraction, what values are not permitted for {{{x}}}? 

{{{4/(x^2-3x+2)}}}

values which are not permitted for {{{x}}} are all values of {{{x}}} which will make denominator equal to zero

so, to find them, set denominator equal to zero:

{{{x^2-3x+2=0}}}........factor completely

{{{x^2-x-2x+2=0}}}

{{{(x^2-x)-(2x-2)=0}}}

{{{x(x-1)-2(x-1)=0}}}

{{{(x-2)(x-1)=0}}}

=>{{{x=2}}} or {{{x=1}}} are values which are not permitted for {{{x}}}