(2 – 5w) (2w^2 – 5) =
= 2 xx 2w^2 + 2 xx (-5) (-5w) xx 2w^2 + (-5w) xx (-5) =
= 4w^2 – 10 – 10w^3 + 25w =
= - 10w^3 + 4w^2 + 25w – 10

Question

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