Question

Factories
$(64m {}^{2} - 144mn + 81n {)}^{2}$
​

Answer 1

64 m - 144 mn + 81n

64 m - 72mn - 9 mn + 81n

8m( 1 - 9n ) - 9n ( 1 - 9n )

( 8m - 9n ) ( 1 - 9n )

Two feet's - Go fc*k yourself by Deadpool