book Maths Puzzle Numerical Ability

PLEASE HELP ME FACTOR AND SOLVE THIS:
8d^3 + 4d^2 + 12d

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book Other Question

Sammy has 4/9 of a share of Microsoft stock. He gave 1/18 of what he had to each of his grandchildren. How many grandchildren does he have? Find 4 consecutive integers such that the product of the first and second integers minus 2 is equal to 3 times the product of the third and fourth integers.