SOLUTION: ok i am very lost here i am trying to help my son with his homework and cant beacause i dont understand these math problems please help. "what is the area of rectangle with a width

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: ok i am very lost here i am trying to help my son with his homework and cant beacause i dont understand these math problems please help. "what is the area of rectangle with a width      Log On


   

Question 188224: ok i am very lost here i am trying to help my son with his homework and cant beacause i dont understand these math problems please help. "what is the area of rectangle with a width of (x+2) and the length of (x+4)? thank you!
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Let L=Length and W=Width

"a width of (x+2) and the length of (x+4)" means that W=x%2B2 and L=x%2B4


A=LW Start with the area of a rectangle formula


A=%28x%2B4%29%28x%2B2%29 Plug in W=x%2B2 and L=x%2B4


A=%28x%29%28x%29%2B%28x%29%282%29%2B%284%29%28x%29%2B%284%29%282%29 FOIL


A=x%5E2%2B2x%2B4x%2B8 Multiply


A=x%5E2%2B6x%2B8 Combine like terms.


So the area is A=x%5E2%2B6x%2B8