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What are the possible expressions for the dimensions of a cuboid whose volume is `2k y^2+6k y-20 kdot`

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`V=2ky^2+6ky−20k`
`V=2k(y^2+3y−10)`
`=2k(y^2+5y−2y−10)`
`=2k[y(y+5)+(−2)(y+5)]`
`=2k(y+5)(y-2)`
`therefore` The dimension of the cuboid `=2k`, `y+5` and `y-2`
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