Question

25(2x+y)^2 - 16(x-y)^2
answer this fast

abb a bhi jao

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Answer 1

25(2x + y)2 – 16(x – y)2

= [5(2x + y)]2 – [4(x – y)]2

= (10x + 5y)2 – (4x – 4y)2

= (10 x + 5y + 4x – 4y) (10x + 5y – 4x + 4y)

= (14x + y) (6x + 9y)

= (14x + y) 3(2x + 3y)

= 3 (14x + y) (2x + 3y)