Question

$\boxed{Let\:a\:and\:b\:be\:relatively\:prime\:integers\:with\:a\:\ \textgreater \ \:b\ \textgreater \ \:0\:}$
Find a - b if
$\frac{a^3-b^3}{(a-b)^3}=\frac{73}{3}$
Plz answer with full explanation only!
The options are:
A) 1
B) 9
C) 3
D) 27
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Answer 1

I know this much only

Answer 2

Here is the answer I know this much only