factor 9x^3+18x^2-x-2

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1 Answer

9x3+18x2-x-2=9x2(x+2)-(x+2)=(9x2-1)(x+2) (x+2 is a common factor).

This further factorises: (3x-1)(3x+1)(x+2).

by Top Rated User (1.1m points)

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