Question

Find one of the factors of (1 + 3y)^2+ (9y^2 - 1).​

Answer 1

the answer is solved in the attached picture

Answer 2

Answer:

(1+3y)^2+(9y^2-1)

=(1+9y^2+6y)+(9y^2-1)

=1+9y^2+6y+9y^2-1

=18y^2+6y

=(6)(3y^2-1)

therefore there are 2 factors founded