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(x + 1) (x2 - x + 1) = ?
1. x3 + 1
2. x3 - 1
3. x3
4. x3 + x2 + 1

1 Answer

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Best answer
Correct Answer - Option 1 : x3 + 1

Calculation:

⇒ ? = (x + 1) (x2 - x + 1)

⇒ ? = (x3 - x2 + x + x2 - x + 1)

∴ ? = (x3 + 1)

 

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