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8m^3 - 28m^2 + 6m - 21. You solve by factoring by grouping!!! quick please

User Klvs
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1 Answer

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Answer:


(2m - 7)(4 {m}^(2) + 3)

Explanation:


8m^3 - 28m^2 + 6m - 21 \\ = 4 {m}^(2) (2 {m} - 7) + 3(2m - 7) \\ = (2m - 7)(4 {m}^(2) + 3)

User Atyc
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