Math, asked by kiah40, 1 month ago

Factorise: 9(x-y)2 – (x+2y)?

Answers

Answered by saibunny

1

Step-by-step explanation:

9( x² + y² -2xy ) - x -2y

9x² +9y² -18xy -x - 2y

x(9x -1 ) -y( 2 - 9y ) - 18xy

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