SOLUTION: If the area of a rectangle is 100m^2 - 49y^2 square meters and the length is 10m +7y meters, what is an expression for the width? Help please!!!

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: If the area of a rectangle is 100m^2 - 49y^2 square meters and the length is 10m +7y meters, what is an expression for the width? Help please!!!      Log On


   

Question 584776: If the area of a rectangle is 100m^2 - 49y^2 square meters and the length is 10m +7y meters, what is an expression for the width? Help please!!!
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
A = L * W

factoring difference of squares ___ 100m^2 - 49y^2 = (10m + 7y)(10m - 7y)