Question

64 x square y square - 9 x square + 18 x y - 9 y square

Answer 1

Answer:

(8xy + 3x - 3y) (8xy - 3x + 3y)

Step-by-step explanation:

64x²y² - 9 (x²-2xy+y²)  

= (8xy)² - 9(x-y)²

= (8xy)² - {3 (x-y)}²

= (8xy)² - (3x-3y)²

= (8xy + 3x - 3y) (8xy - 3x + 3y)

Answer 2

64x²y²- 9x²+18xy-9y² =0

(8xy)²-(9x²-18xy+9y²) =0

(8xy)²-(3x-3y)²=0

(8xy+3x-3y)(8xy-3x+3y)=0

After this you will be able to answer the question properly.

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