Question

subtract. simplify, if possible.

4x-36 over x^2-81 minus 4x-36 over 81-x^2

Answer 1

\[\frac{4x-36}{x^2-81}-\frac{4x-36}{81-x^2}=\frac{4x-36}{x^2-81}+\frac{4x-36}{x^2-81}\]
\[=\frac{8x-72}{x^2+81}\]}

Answer 2

you have the correct setup, but not what they are looking for

Answer 3

another typo, it should be
\[=\frac{8x-72}{x^2-81}\] now maybe we can factor and cancel

Answer 4

\[\frac{8(x-9)}{(x+9)(x-9)}=\frac{8}{x+9}\]

Answer 5

thank you :) *muah*

Answer 6

yw