Question

If a/b = 5/3 to find (2a^3+b^3)/b^3

Answer 1

a/b=5/3

(2a³+b³)/b³

=2a³/b³+1

=2(a/b)³+1

=2(5/3)³+1

=(2*125)/27 +1

=(250+27)/27

=277/27