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WAEC Mathematics 2019 Question 32

Question 32

Algebraic Expressions

Factorize completely: (2x + 2y)(x − y) + (2x − 2y)(x + y).

  1. A.4(x − y)(x + y)
  2. B.4(x − y)
  3. C.2(x − y)(x + y)
  4. D.2(x − y)
Show the answer and explanation

Answer: A (4(x − y)(x + y))

Explanation

Each part is 2(x + y)(x − y), so the sum is 4(x − y)(x + y).