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