ECZ 2025 · O-Level Paper 1 — Algebra
Factorise completely 3a - c - 3ab + bc.
- A. (3a − c)(1 − b)
- B. (3a + c)(1 − b)
- C. (3a − c)(1 + b)
- D. (3a − c)(b − 1)
Verified working — step 1
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