Write your answers as integers or simplified fractions. Part 1 of 11 (a) Write the function in vertex form. 2 n(x) = -2x+6x+9 Factor out the leading coefficient of the x term from the two terms containing x. The leading term within parentheses now has a coefficient of 1. 2 n(x) = ==2 3x +9 Part: 1/11 Part 2 of 11 X Complete the square within parentheses. Add and subtract [(-3)] - I within parentheses. X