SOLUTION: Please help me solve this problem if a rectangle has length x+3 and width x-7. Find the area of the rectangle in terms of x.

Algebra ->  Expressions-with-variables -> SOLUTION: Please help me solve this problem if a rectangle has length x+3 and width x-7. Find the area of the rectangle in terms of x.       Log On


   

Question 100411: Please help me solve this problem if a rectangle has length x+3 and width x-7. Find the area of the rectangle in terms of x.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Area of a Rectangle:
Area=Length*Width


Since length is x+3 and the width is x-7, the area is

A=%28x%2B3%29%28x-7%29


A=x%5E2-7x%2B3x-21 Foil


A=x%5E2-4x-21 Combine like terms