Math, asked by srutilekhabanerjee6c, 1 month ago

(21 - 5m - 3n)2 + (6m + 3n – l)²+2 (21-5m-3n) (6m + 3n-l)

Answers

Answered by chinugolusharma36

Answer:

Given 3m + 5n = 9 - - - - - (1)5m + 3n = 7 - - - - - (3)multiply eq (1) by 5 and eq (2)by (3) we get 15m + 25n = 45 15m + 9n = 2116n = 34. [n = 17/8] ..

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(21 - 5m - 3n)2 + (6m + 3n – l)²+2 (21-5m-3n) (6m + 3n-l)​

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(21 - 5m - 3n)2 + (6m + 3n – l)²+2 (21-5m-3n) (6m + 3n-l)