Question

What is the coefficient of the second term of the trinomial?

(3x+3)2=9x2+Bx+9

Enter your answer in the box.

B = ?

Answer 1

This is the correct answer, I even provided proof from my own test. Hope this helps!

Answer 2

(3x+3)^2

(3x+3) * (3x+3)

FOIL

3x*3x +3x*3 +3x*3 +3*3

9x^2 +9x+9x+9

9x^2 +18x+9

B=18