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OAU Post-UTME Mathematics 2019 Question 5

Question 5

Algebraic Expressions

Factorise 4x − 3ay + 4y − 3ax

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

Answer: B ((4 − 3a)(x + y))

Explanation

Group: 4(x + y) − 3a(x + y) = (4 − 3a)(x + y).