Question

Express as a trinomial.
(x + 9) (3x + 9)

Answer 1

Answer:

3x^2+36x+81

Step-by-step explanation:

(x+9)(3x+9)=3$x^{2}$ +9x+37x+81

Answer 2

⇛(x + 9) (3x + 9)

⇛x(3x+9) + 9(3x+9)

⇛3x² + 9x + 18x + 81

⇛3x² + 27x + 81