The area of a rectangle is x^2-2x-15 and the length of the rectangle is x+3. Find the width of the rectangle

Question

i really have no clue how to solve this 

 

 

Answer 1

x² - 2x - 15 factors to (x+3) (x-5)

 

Area = Length × Width

• Area = x²-2x-15
• Length = (x-3)
• Width = ____?

 

Width = (x+5)