Question

Write f(x) = x² + 6x +9 in completed
square form​

Answer 1

Answer:

(x + 3)^2

Step-by-step explanation:

x^2 + 6x + 9

= x^2 + 3x + 3x + 9

= x(x + 3) + 3(x + 3)

= (x + 3)(x + 3)

= (x + 3)^2