SOLUTION: how many units are there in the edge of a cube if the number of a square unit in its total surface equals the number of cubic units in its volume?

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Question 1043384: how many units are there in the edge of a cube if the number of a square unit in its total surface equals the number of cubic units in its volume?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Let x be the length of an edge of the cube.

Area is 6x%5E2.
Volume is x%5E3.

According to description, 6x%5E2=x%5E3.

6x%5E2-x%5E3=0
%286-x%29x%5E2=0
You are looking for x=6.