Question

If the area of the basic house plan is x 2 + 30x + 200 square feet, what is the width of the basic house plan?

Answer 1

Width of the house is
`X + 10`

Explanation:

Given

The area of the house

`X^2 + 30 X + 200`

On solving the above equation we get

`X^2 + 20 X + 10 X + 200\\X (X +20) + 10 (X + 20)\\(X +10)(X +20)`

Width of the house is
`X + 10`