Can the expression
-4x(-x - 3) ever be negative? Choose the best explanation

A) Yes, because 4x + 12 is negative it x < -3
B) No, because 4x^2 and 12x are both positive
C) Yes, because 4x^2 + 12x is negative when x is between -3 and 0
D) No, because both factors are negative, so the product must be positive

the last choice

step-by-step explanation:

(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

9x

1260=3*6*7*10=3^2*2^2*7*5 perfect cude = 3^3*2^

step-by-step explanation: