Question

please help

Answer 1

just factorise first fraction.

Answer 2

Factor your denominator and numerator.
Hint: \[(a^2 -b^2)= (a+b)(a-b)\]
(Denominator) Prod= 81
Sum = 18
So find two numbers that multiply to give 81 and add up to 19.

Answer 3

\[x^2-81=(x+9)(x-9).\]

Answer 4

\[x^2+18x+81=(x+9)^2\]

Answer 5

now u can do it:)

Answer 6

gt it??

Answer 7

or not?

Answer 8

yeah i got it

Answer 9

good:)

Answer 10

^_^ thanx!

Answer 11

yw:)

Answer 12

No problem

Answer 13

that's easier to understand ^_^ appericate it

Answer 14

thanx:)

Answer 15

you're welcome!