Question

question in comment

Answer 1

\[find~the~values~of~A~and~B~so~that~~\frac{A}{x-3}+\frac{B}{x+3}=\frac{5x+9}{x^2-9}\]

Answer 2

did you understand the last one?

Answer 3

ya

Answer 4

i got that one

Answer 5

ok, so use the idea of a difference of two squares here :)

Answer 6

\(A(x+3)+B(x-3)=5x+9\) right?

Answer 7

yes

Answer 8

what next then?

Answer 9

What does the question ask for?

Answer 10

the first comment

Answer 11

multiply out the LHS of your equation please

Answer 12

what?

Answer 13

i don't get u