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Algebra 2 question please help?
Simplify. Identify any x-values for which the expression is undefined.
-X^2 + 3X divided by 2X^2 - 7X + 3
A.-X / X + 2
undefined for X= -3/2 and X= 1
B. X divided by -2x - 1
undefined for X= 3 and X= 1/2
C. X divided by -X + 2
undefined for X= 3/2 and X=1
D. -X divided by 2X - 1
undefined for X=3 and X= 1/2
I think your supposed to factor it out or something but I just can't come up with anything. I don't need an answer I need for someone to show me how to do this because I have no idea what to do.
1 Answer
- frak1a12345Lv 68 years agoFavorite Answer
D. is the correct answer. You have to factor both the numerator and the denominator and then cancel out the common factor to get the simplest answer. Since undefined occurs when the denominator is 0 you set each of the 2 factors in the denominator equal to 0 and solve for x.
