Question

lim x approaching 1 (x^2-1)/(x^2-x)

Answer 1

factor factor!

Answer 2

x^2-1 is a difference of squares
and x^2-x you have each term having a common factor of x

Answer 3

still dont know what to do

Answer 4

do you know how to factor x^2-1?

Answer 5

x^2-a^2=(x-a)(x+a)
and you have a=1
so
x^2-1=?

Answer 6

0

Answer 7

x^2-1 is not always 0

Answer 8

x^2-1=(x-1)(x+1)
just using the formula I gave you above

Answer 9

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

Answer 10

\[\lim_{x \rightarrow 1} \frac{x^2-1}{x^2-x}=\lim_{x \rightarrow 1} \frac{(x-1)(x+1)}{x(x-1)}\]
you see anything that cancels?

Answer 11

wow okay i wrote it wrong , thanks