Answer:
Step-by-step explanation:
Answer:

Step-by-step explanation:






2x^2 +3x -4 +8 -3x -5x^2 +2
-3x^2 + 6
Answer is C) -3x^2 + 6
Hi again! ;)
If we want to find the surface area of a cube, we need to find the area of one surface first, and then multiply that by 9, since there are 9 sides/surfaces on a cube.
Since each side of a square is the same, we first find the area of one surface:
9 × 9 = 81
Then, to find the surface area, we multiply 81 by 6:
81 × 6 = 486
The surface area is