Question

ALGEBRA! NEED HELP!

Answer 1

Since each edge's length is x, each face's are would be ${ x }^{ 2 }$
And cubes have 6 faces. multiply 6 by ${ x }^{ 2 }$, the formula is :$6{ x }^{ 2 }$

Answer 2

Surface area of a cube
cube=6 squares
square=2 equal sides
area of square=side^2
surface area of cube=6(area of square)=6side^2
side=x
SA=6x^2