factoring completely 5w^3-20w^2+3w-12

5w^3     -20w^2   +3w   -12

factoring completely
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1 Answer

5w^3+3w - 20w^2-12=w(5w^2+3)-4(5w^2+3)=(w-4)(5w^2+3). The quadratic has no real zeroes so this is the most that can be factorised.

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