Question

If a and b are positive integers such that ab = 125, then (a-b)^(a+b-4) is equal to ?

Answer 1

ab = 125
125 = 5*25 or 1*125 (no other integers multiply into 125)
Therefore:
\[f(a,b) = (a-b)^{a+b-4} \]
\[f(125,1) = 2.49715552 × 10^{255}\]
\[f(1,125) = 2.49715552 × 10^{255}\]
\[f(25, 5) = 1.49011612 × 10^{18}\]
\[f(5,25) = 1.49011612 × 10^{18}\]

Answer 2

thanks

Answer 3

but

Answer 4

options are:
1) 16
2) 25
3) 28
4) 30

Answer 5

Did you write the question correctly?