Question

Simplify by removing the factors of 1.
S^2-81/S^2-18s+81 please show the steps.

Answer 1

\[\frac{s^2-81}{s^2-18s+81}=\frac{(s-9)(s+9)}{(s-9)(s-9)}\]

Answer 2

so when you "remove a the factors of 1" aka cancel, you get
\[\frac{s+9}{s-9}\]

Answer 3

I know this is dumb but what is the 1 factor

Answer 4

what they mean is this

Answer 5

\[\frac{(s-9)(s+9)}{(s-9)(s-9)}=\frac{s-9}{s-9}\times \frac{s+9}{s-9}=1\times \frac{s+9}{s-9}\]

Answer 6

so this odd wording just means that
\[\frac{s-9}{s-9}=1\] so you can remove it

Answer 7

it is not a dumb question, it is just worded funny. who wrote this?

Answer 8

my professor

Answer 9

figures

Answer 10

lol yea It has been one confusing class I can tell you this much.

Answer 11

good luck! hope this helped

Answer 12

Yes thanks I am sure i will be posting more hahaha.