Question 1128766
4𝑤^3- 16𝑤^2 - 20w = 4w(w^2 -4w -5) = 4w(w-5)(w+1)
:
4w(w-5)(w+1) = 4w(w^2 -4w -5) = 4w^3 -16w^2 -20w
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