Respuesta :

answer is
(7m-9n)^2
that ur answer
that correct now
Using a 2 2ab+b2-(a-b).factor the expression
feep

Answer:

The answer is (7m-9n)^2

Step-by-step explanation

First, reorder the terms:

-126mn + 49m2 + 81n2


Factor.

(7m + -9n)(7m + -9n)


Final result:

(7m + -9n)(7m + -9n)