describe how to solve 81m^2-25
we can solve if it is equal to zero (it could be equalt to 12031923 for all we know)I can say how to factor thoughdifference of 2 perfect squaresif yo havea^2-b^2 then that equals (a-b)(a+b)81m^2=(9m)^225=5^2tehrfor(9m)^2-(5)^2=(9m-5)(9m+5)