Respuesta :

Answer:

x^2 + 11x +18

Step-by-step explanation:

Use the FOIL method

Firsts: x*x = x^2

Outer: 9*x = 9x

Inner: 2*x = 2x

Lasts: 2*9 = 18

Now Combine like terms: 9x + 2x = 11x

And put all together: x^2 + 11x + 18