Question

a^2-b^2/a^3+b^3 divided by 8b-8a/9

a+b/a^2+ab+b^2

as my answer but I don't think its right

Answer 1

Show your work, please.

Answer 2

\[{a^2-b^2 \over a^3+b^3} \div {8b-8a \over9}\] ?

Answer 3

\[={a^2-b^2 \over a^3+b^3} \times {9\over 8b-8a}\]
\[={(a+b)(a-b) \over (a+b)(a^2-ab+b^2)} \times {9\over -8(a-b)}\]

Answer 4

\[\large{=-{9 \over 8(a^2-ab+b^2)} }\]