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Factored form for 343x^3-64

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Explanation:


343 {x}^(3) - 64 \\ = {(7x)}^(3) - {(4)}^(3) \\ = ( 7x - 4) \{(7x)^(2) + 7x * 4 + {(4)}^(2) \} \\ = ( 7x - 4) (49x^(2) + 28x + 16 )

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