Question

solve (7m-5n)³-(7m+5n)³ fast solve and give me answer....☺☺​

Answer 1

Step-by-step explanation:

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-1470m²n

• (a - b)³ = a³ - b³ - 3a²b + 3ab²
• (a + b)³ = a³ + b³ + 3a²b + 3ab²

Answer 2

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${(7m - 5n)}^{3} - {(7m + 5n)}^{3}$

${a}^{3} - {b}^{3} - {3a}^{2}b - {3ab}^{2}$

${7m}^{3} - {5n}^{3} - {3(7m)}^{2} (5n) - {3(7m)(5n)}^{2} - {7m}^{3} - {5n}^{2} - {3(7m)}^{2}(5n) - {3(7m)(5n)}^{2}$

1470m^2n