Answer:
-3 and 1/3, -3, -1, -1/2(-0.5), 0, 1, 4, 21/5(4.2), 5, lastly 6
I dont know how to solve this but heres a suggestion: Use PEMDAS
(x+2)(x+2)
x^2+2x+2x+4
x^2+4x+4
Answer : C ( x^2+4x+4)