ahan151
ahan151 ahan151
  • 11-07-2016
  • Mathematics
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Is it true that (x^2–3x+2)/(x –1) = x – 2, for all values of x? Justify your answer.

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apologiabiology
apologiabiology apologiabiology
  • 11-07-2016
no, if x=1 then you get an undefined statement
if you want to try to simplify then

x^2-3x+2=(x-1)(x-2)

((x-1)(x-2))/(x-1)=x-2 is that true?
x-1 cancels out
x-2=x-2
true
but, the x-1 is trickey

if x=1, then the denomenator becomes 0 and the equation is undefined
undefined =x-2 is false

answer if no
but if your teacher says that it is true because of simplification tell that x=1 doesn't work
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