Question

I need to know if it’s A,B c or D

Answer 1

Given: (x+3)^2

Expand the given

(x+3)^2 → (x+3)(x+3)

Do the FOIL method

(x+3)(x+3)

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

Simplify

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

= x^2 + 6x + 9

Therefore, (x+3)^2 is equal to x^2 + 6x + 9