Question

Polynomial form? the numbers to the side are confusing

Answer 1

x^2 + 11x + 18.

Explanation:

The length = x + 9 and the width = x + 2.

So the area

= length * width

= (x + 9)(x + 2)

= x(x + 2) + 9(x + 2)

= x^2 + 2x + 9x + 18

= x^2 + 11x + 18.