Question

16. The area of a rectangle is represented by x^2 + 12x+ 20. What is the missing side length of the rectangle?

Answer 1

Length = x + 2

Width = x +10

Explanation:

`Area = Length * Width`

`x^2 + 12x +20 = Length * width\\\\x^2 + 2x + 10x + 20 = Length * width\\\\x(x+2)+10(x+2) = Length * width\\\\(x+2)(x+10) =Length * width\\`

Length = x + 2

Width = x +10

Answer 2

x = 1.43

Explanation:

14x = 20

x = 20/14

x = 14.3