Question

simplify 5^n+2-6*5^n+1/13*5^n-2*5^n+1

Answer 1

[5^n*5^2 -6*5^n*5]/[13*5^n*1/5^2 -2*5^n*5]

=[5^n(25-30)]/[5^n(13/25 -10)]

after cancellation

=(-5)/[(13-250)/25]

=(-5)/[(-237)/25]

=(5*25)/237

=125/237