Factorise x^2+3x-28.

  1. (x+4)(x+7)
  2. (x+4)(x-7)
  3. (x-4)(x+7)
  4. (x-4)(x-7)
Answer

C) (x-4)(x+7)

Find two numbers with product -28 and sum 3: -4 and 7. So x^2+3x-28 = (x-4)(x+7). SLO M-09-A-18 · Understanding

Mathematics MCQ · More Factorization MCQs · Practise