A training field is formed by joining a rectangle and two semicircles. the rectangle is 98 m long and 68m wide. what is the length of a training track running around the field?

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18

all it means is function 3

your answer is 125y5

show us the triangle so we can answer it