Question

Factorise = 25 m² - 16n²

answer step by step ​

Answer 1

Step-by-step explanation:

$25 {m}^{2} - 16 {n}^{2} =$

${5}^{2} {m}^{2} - {4}^{2} {n}^{2}$

therefore

(5m)^2- (4n)^2 = (5m - 4n ) (5m+4n)

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concept used :-

${x}^{2} - {y}^{2} = (x + y)(x - y)$

good day

Answer 2

Step-by-step explanation:

• $(a + b) \: (a - b )= {a}^{2} \: - {b}^{2}$
• (5m-4n)(5m+4n)