Question 475862

Find a counterexample  for statement.
{{{2^n+3^n}}} is divisible by {{{4}}}

answer:

{{{n = 0}}} --> {{{1 + 1 = 2}}} is {{{NOT}}} divisible by {{{4}}}


Find a counterexample  for statement.
{{{2^n+2n^2}}} is divisible by {{{4}}}

answer:

{{{n = 0}}} --> {{{2^0 + 2*0^2 = 1+2*0=1}}} is {{{NOT}}} divisible by {{{4}}}