1.

If `x=2^(1//3)-2`, then `x^(3)+6x^(2)+12x`=_______A. 6B. `-6`C. 8D. `-8`

Answer» Correct Answer - B
Given `x=2^(1//3)-2`
`implies x+2=2^(1//3)`
Taking the cubes of the terms on both the sides ,
`implies (x+2)^(3)=(2^(1//3))^(3)`
`implies x^(3)+6x^(2)+12x=-6`


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