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A cube has edge length x (an integer). three faces meeting at a corner are painted blue. The cube is then cut into smaller cubes of unit length. If exactly 343 of these cubes have no faces painted blue, then the value of x is ________ . |
Answer» (x 1)3 = 343 ⇒ x 1 = 7 ⇒ x = 8 |
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