Question

factorise the following expressions 25 m square minus 40mn plus 16 n square​

Answer 1

Answer:

(5m-4n)(5m+4n)

Step-by-step explanation:

${25m}^{2} - 40mn + {16n}^{2} \\ {25m}^{2} - (20 + 20)mn + {16n}^{2} \\ {25m}^{2} - 20 mn - 20mn + {16n}^{2} \\ 5m(5m - 4n) - 4n(5m - 4n) \\ (5m - 4n)(5m - 4n)$

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Answer 2

HOPE IT HELPS YOU : )

25m^2-40MNC+16n^2

(m)^2-2×5m×4n+ (4n)^2

(5m-4n)^2

(5m-4n) (5m-4n)