Question

1/625x^2-1/9y^2
factorise​

Answer 1

Answer:

Step-by-step explanation:

1/625x² - 1/9y²

= ( 1/25x )² - ( 1/3y )² ( ∵ 25 × 25 = 25² = 625 ; 3× 3 = 3² = 9 )

= ( 1/25x - 1/3y ) ( 1/25x + 1/3y ) is the answer. ( ∵a²-b² = (a -b) (a +b ) )