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Railways PYQCBT 1 2016

RRB NTPC · Question 5

Simplify 5x(x + 2) + 4x A.5x^2 + 10 B.9x + 10 C.5x^2 - 14x D.5x^2 + 14x

  1. B

  2. A

  3. C

  4. D

Show answer & explanation

Answer: (D) D

Explanation

5x(x + 2) + 4x = 5x² + 10x + 4x = 5x² + 14x.