The formula for the surface area of a cube is 6s2 Jack plugs in 8 for the length of of the cube. He multiplies 6 by 8. Then he "squares" 48 to get 2304. What mistake, if any, did he make?
He should have doubled 48.
He should have squared 8 before multiplying by 6.
He should have squared 6.
He did not make a mistake.