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Volume of a cube

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A cubic shipping container had a volume of a3 cubic meters. The height was decreased by a whole number of meters and the width was increased by a whole number of meters so that the volume of the container now is a3+2a2-3a cubic meters. By how many meters were the height and width changed.
Note: Appendix A gives the formula for the volume of a cube.
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The solution calculates the new height and width of a cube given the earlier volume and new volume

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A cubic shipping container had a volume of a3 cubic meters. The height was decreased by a whole number of meters and the width was increased by a whole number of meters so that the ...

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