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Answer of factorization of expression 8a(2x + 4y) - (2x + 4y) is

  • A.(8a - 1)(2x + 4y)
  • B.(8a - 1) + (2x + 4y)
  • C.(8a - 1) - (2x + 4y)
  • D.(8a + 1) - (2x - 4y)

Answer: A

Both terms share the bracket \( (2x + 4y) \), the second with an unwritten coefficient of 1.

\[ 8a(2x+4y) - 1 \cdot (2x+4y) = (8a - 1)(2x + 4y) \]

That invisible 1 becomes the \( -1 \) in the first bracket; dropping it would lose a whole term.

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