Mature soil is composed of three layers the uppermost being topsoil jamal is planting a bush that needs an hole 18 cm deep for the roots. the instructions suggest an additional 8cm depth for cushion. if jamal wants to add mor cushion and the topsoil i. is yard 30 cm deep how much more cushions can he add and still remain on the topsoil layer?

(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

answer: 140

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so just add all then it will be your answer but i am not pretty sur eif it is but hope this i am here to people

a

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what are you trying find out?

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