Sergio made a whole pan of lasagna. his friends ate some of the lasagna. there was 1/3 of the pan of lasagna left. sergio said his friends ate 5/6 of the lasagna.
is sergio's answer reasonable?
a. no, it is not reasonable because 1/3 x 5/6 = 5/18
b. no, it is not reasonable because 1 - 1/3 = 2/3
c. yes, it is reasonable because 1/3 + 1/2 = 5/6

(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

i can you with this question sweetie!

step-by-step explanation: