1.

25-30x-2y) 12.

Answer»

25 ( x + y)² - 36 ( x - 2y)²

(5(x+y))² - ( 6 ( x-2y))²

(5x + 5y)² - (6x - 12y)²

(5x + 5y - 6x + 12y) ( 5x + 5y + 6x - 12y)

(-x + 17y) ( 11x -7y)



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