ECZ 2019 · GCE Paper 1 — Algebra
Factorise completely 32x2 − 50.
- A. 2(16x2 − 25)
- B. (8x − 10)(4x + 5)
- C. 2(4x − 5)2
- D. 2(4x − 5)(4x + 5)
Verified working — step 1
"Factorise completely" means keep going until nothing more factorises. Pull out the common number first, then look for a difference of two squares.The full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.
Have a different question?
Search it — if it is from a past paper or a school mock, chances are we have it worked out, or one that uses the same method.
Search any past-paper question