(1 + x) (1 + x) = ...........A) 2 + 2x B) 1 + x2 C) 1 + x2 + 2x D) – InterviewSolution

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1.

(1 + x) (1 + x) = ...........A) 2 + 2x B) 1 + x2 C) 1 + x2 + 2x D) 1 + x + 2x2

Answer»

Correct option is (C) 1 + x²+ 2x

\((1+x)\) \((1+x)\) \(=1+x+x+x^2\)

= \(1+2x+x^2\)

C) 1 + x² + 2x

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