SOLUTION: Can someone please help me solve these two problems. I am so stumped!! 1.(6x-9y)(6x+9y) I should be using FOIL right? But the same numbers have me stumped!! 2.The area of the

Algebra ->  Algebra  -> Distributive-associative-commutative-properties -> SOLUTION: Can someone please help me solve these two problems. I am so stumped!! 1.(6x-9y)(6x+9y) I should be using FOIL right? But the same numbers have me stumped!! 2.The area of the      Log On

Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

   

Question 619144: Can someone please help me solve these two problems. I am so stumped!!
1.(6x-9y)(6x+9y) I should be using FOIL right? But the same numbers have me stumped!!
2.The area of the rectangular swimming pool is given by 4x^2+19x+12 ft^2 one side is given by 4x+3 feet. What is an algebraic expression for the other side of length of pool? Simplify this and include correct units.
Answer by richard1234(5390) About Me  (Show Source):
You can put this solution on YOUR website!
1. Don't need FOIL. Realize that this is a difference of two squares:



2. Area = Length*width, so width = Area/length. Divide: