There are 3 buses in the park. The first bus takes 2 hours to make a round trip, the next bus takes 4 hours and the third bus takes 5 hours. If they all leave the park at the same time,
how many hours later will they all arrive back in the park, at the same time?​

(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

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

figure c

step-by-step explanation:

hope this .

3/5

step-by-step explanation:

double number line is not a standard concept, so it must have been defined in your textbook. assume top line is numerator.