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If x ^(3) + 3x ^(2) + 3x = 7, then the x...

If `x ^(3) + 3x ^(2) + 3x = 7,` then the x is equal to

A

2

B

`root(3)(6)`

C

1

D

`-1`

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CHAMPION PUBLICATION-2010 TIER-II PAPER(24)-EXERCISE
  1. The value of ((0. 1xx0. 1xx0. 1+0. 02xx0. 02xx0. 02)/(0. 2xx0. 2xx0...

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  2. If x+1/x=2, then the value of x^99+1/x^99 is- यदि x+1/x=2 है, तो x^...

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  3. If x ^(3) + 3x ^(2) + 3x = 7, then the x is equal to

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  4. If 2x+2/x=1, then the value of x^3+1/x^3 is यदि 2x+2/x=1 हो, तो x...

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  5. The greatest number among sqrt5, root(3)(4), root(5)(2), root(7)(3) is...

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  6. root(3)((13.608)^2-(13.392)^2) is equal to root(3)((13.608)^2-(13.39...

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  7. [1/(1xx2)+1/(2xx3)+1/(3xx4)+ ,+1/(99xx100)]=

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  8. The sum of all the digits of the numbers from 1 to 100 is 1 से 100 त...

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  9. A shopkeeper sells sugar in such a way that the selling price of 950g ...

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  10. A person bought a horse and a carriage for Rs. 20,000. Later, he sold ...

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  11. A sells an article to B at 15% profit. B sells it to C at 10% loss. If...

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  12. An article is sold at a certain fixed price. By selling it at 2/3 of t...

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  13. A sells an ariticle to B for Rs.45,000 losing 10% in the transaction. ...

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  14. The cost price of an article is 80% of its marked price for sale. How ...

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  15. A merchant has announced 25% rebate on priece of ready-made garments a...

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  16. A merchant purchases a wrist watch for Rs 450 and fixes its list price...

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  17. A reduction of 10% in the price of tea enables a dealer to purchase 25...

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  18. Ram donated 4% of his income to a charity and deposited 10% of the res...

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  19. The length of a rectangle is increased by 10% and breadth decreased by...

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  20. Three spherical balls of radii 1 cm, 2cm and 3 cm are melted to form a...

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