Question

please answer the question ​

Answer 1

Answer:

-50m2

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Answer 2

$\\ {(2m - 5)}^{3} = {2m }^{3} - 3 {(2m)}^{2} (5) + 3(2m) {(5)}^{2} - {5}^{3} \\ = {8m}^{2} - 60 {m}^{2} + 150 - 125 \\ so \: option \: iii) \: 60 {m}^{2} \: is \: correct \: answer$

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