Question

it applies for 95 also

Answer 1

is this a question?

Answer 2

9^2=81 +1=91 ADD 25=>9125 BUT95^2=9025

Answer 3

5*5=25 9*10=90 so answer is 9025

Answer 4

ok,i misunderstood the idea:)

Answer 5

It works for any number finishing in a five.
n|5^2=(n)(n+1)|25
where | stands for a concatenation.
125^2=12*13|25=15625
i.e.
12*13 =156, tag on 25 at the end to give 15625.