Answer
$x^{2} + 11x + 18$
Work Step by Step
To simplify the polynomial we apply the distributive property that states:
a(b+c)=ab+ac
= x(x+9) + 2(x+9)
= ($x \times x$) + ($x\times9$) + ($ 2\times x$) + ($2 \times 9$)
= $x^{2} + 9x + 2x + 18$
= $x^{2} + 11x + 18$
We Add like terms to get final answer
