According to the wall street journal, 14,200,000 videotape copies of walt disney's fantasia have been sold to date. write that number in scientific notation.
a. 142 × 1,000,000
b. 1.42 × 107
c. 1.42 × 106
d. 142 × 107

(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

a. -0.3 > -0.33