Question

factorise: 343m³-512n³


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Answer 1

$343 {m}^{2} - 512 {n}^{2} \\ {(7m)}^{2} - {(8n)}^{2} \\ (7m + 8n)(7m - 8n)$

Answer 2

Answer:

$(7m)^{3} -(8n)^3\\=(7m-8n)((7m)^2+7m*8n+(8n)^2)$

$=(7m-8n)(49m^2+56mn+64n^2)$

Step-by-step explanation: