Which of these statements are not true? 1. two points denote a straight line. 2. space is the set of all points. 3. a plane is a curved surface that extends in all directions. 4. a point is a location.

I think it’s 3 because I know 4 is right so it’s either 1-2 or 3

(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