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kerribaberri
When kx3 + px2 - x + 3 is divided by x - 1, the remainder is 4. When kx3 + px2 - x + 3 is divided by x - 2, the remainder is 21. Find the values of k and p.
use remainder theorem twice :) well known theorem http://en.wikipedia.org/wiki/Polynomial_remainder_theorem