factorise 64m³-343n³
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64m³ - 343n³
= (4m)³ - (7n)³
Use, formula,
a³ - b³ =( a - b)(a² + ab + b²)
= (4m - 7n) {(4m)² + (4m)(7n) + (7n)² }
= (4m - 7n) {16m² + 28mn + 49n²}
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Answered by
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64m³ - 343n³
Using a³ - b³ = (a-b)(a²-ab+b²)
(4m-7n)(16m²-28mn+49n²)
Using a³ - b³ = (a-b)(a²-ab+b²)
(4m-7n)(16m²-28mn+49n²)
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