A cuboid 2
A cuboid with a depth of 4 cm but a length and width of x cm is cut out from one corner of the original cuboid as shown (the original cuboid has dimensions of 10x8x4 cm). The remaining shape has a volume of 199 cm3. Calculate the value of x.
Correct answer:

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You need to know the following knowledge to solve this word math problem:
- algebra
- quadratic equation
- equation
- expression of a variable from the formula
- arithmetic
- square root
- solid geometry
- cuboid
- prism
- planimetrics
- area of a shape
Units of physical quantities:
Grade of the word problem:
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