Question

show that

Answer 1

\[m^4+m^3+m^2+m+1\]
is a square only when m=3

Answer 2

3^4+3^2+2^2+3+1
81+27+9+3+1
121

Answer 3

where m is a natural number and the expression is a number

Answer 4

that is clear but how do we show that it is a square only when m=3

Answer 5

this does not say verify but prove