Answer
$6x^{2}$+24x+24
Work Step by Step
1. Find Surface Area using the formula A=$6s^{2}$
2. The side length of the cube is s=(x+2)
3. FOIL using $6s^{2}$
A=6[(x+2)(x+2)]
A=6[(x)(x)+(2)(x)+(x)(2)+(2)(2)]
A=6[$x^{2}$+2x+2x+4]
A=6[$x^{2}$+4x+4]
4. Simplify
A=$6x^{2}$+24x+24
