SOLUTION: Bob has designed a square mural that measures 10 feet on each side. Bill has also designed a square mural, but his measures y feet shorter on each side. Write an expression to repr

Algebra ->  Surface-area -> SOLUTION: Bob has designed a square mural that measures 10 feet on each side. Bill has also designed a square mural, but his measures y feet shorter on each side. Write an expression to repr      Log On


   

Question 1003791: Bob has designed a square mural that measures 10 feet on each side. Bill has also designed a square mural, but his measures y feet shorter on each side. Write an expression to represent the area of Bill's mural. How much smaller than Bob's mural is Bill's mural? Explain
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Bob
10%2A10=100

Bill
%2810-y%29%5E2=100-20y%2By%5E2

How much smaller is Bill's than Bob's?
100-%28100-20y%2By%5E2%29
20y-y%5E2